Chapter 1: Natural Resources and Their Use Class 8th Social Science (Exploring Society: India and Beyond) ncert solution

Natural Resources & Their Use — Full Solutions | @edugrown
🌿 Chapter 1  |  Land & the People  |  Grade 8

Natural Resources and
Their Use
— Complete Solutions

Every Think About It, Let’s Explore, Don’t Miss Out and end-of-chapter question answered in detail, with the chapter’s own figures embedded throughout.

Dudhsagar waterfall Goa@EDUGROWN
Fig. 1.1 — Dudhsagar waterfall and the railway bridge, Goa, India

OpenerThe Big Questions

These three questions appear on page 1 of the chapter. Here are direct, comprehensive answers drawing on the full chapter.

1
Big Question 1How do we categorise natural resources?
Answer

A — By the use we put them to

  • Resources essential for life: Air, water and soil/food — we cannot manufacture these, and life is impossible without them.
  • Resources for materials: Wood, marble, coal, gold — converted into useful or beautiful objects (e.g., wood → chair or statuette).
  • Resources for energy: Coal, water, petroleum, natural gas, sunlight, wind — power electricity, transport and industry.

B — By whether they can be replenished (renewability)

  • Renewable resources: Sunlight, wind, flowing water, forests, soil — regenerated by Nature if we do not disturb its rhythms.
  • Non-renewable resources: Fossil fuels (coal, petroleum) and minerals/metals (iron, copper, gold) — took millions of years to form; cannot be replenished at the rate we use them.
Key rule: A resource is classified as renewable only as long as its extraction rate stays below Nature’s regeneration rate.
2
Big Question 2What is the connection between the distribution of natural resources and different aspects of life?
Answer

Natural resources are not evenly distributed across the planet or within countries. This uneven spread shapes nearly every aspect of human life:

  • Settlements & employment: Industries near resource deposits create townships, jobs and better facilities for local communities.
  • Trade: National and international trade is built around the geographical location of resources. Combined with human skill, resources create unique products (e.g., Wootz steel) and historically fuelled the rise of empires.
  • Conflict & diplomacy: Resources cross political boundaries (e.g., Kaveri River shared by four states; Brahmaputra flowing through China, India and Bangladesh), requiring careful negotiation — and sometimes causing wars.
  • Displacement & inequality: Communities in resource-rich regions are sometimes displaced for extraction projects; access to basic resources like clean water and air is often unequal across society.
3
Big Question 3What are the implications of unsustainable use / over-exploitation of natural resources?
Answer
  • Depletion of renewables: Over-pumping groundwater (Punjab — 80% area “over-exploited”) makes a renewable resource effectively unavailable; over-fishing collapses species like tuna.
  • Pollution & health hazards: Industrial effluents in rivers; pesticide/fertiliser chemicals dissolving into groundwater cause disease.
  • Climate change: Fossil-fuel combustion and deforestation raise temperatures, melting Himalayan glaciers faster than precipitation can replace them, threatening water for hundreds of millions.
  • Biodiversity loss: Disturbed ecosystems lose species and the ecosystem services (clean water, pollination, fertile soil) that humans depend on.
  • The “resource curse”: Short-term extraction gain can come at the cost of long-term sustainability — future generations inherit a degraded environment.

In-TextThink About It & Let’s Explore

All activity boxes from pages 3–18, answered in detail with supporting figures from the chapter.

T
Don’t Miss Out · Page 3In many indigenous traditions of the world, Nature is considered sacred — a nurturer and nourisher. Do you know of practices that reflect this?
Answer
Tulasi puja@EDUGROWN
Fig. 1.6 — Tulasi puja: worshipping the holy basil plant reflects reverence for living Nature
  • Tulasi puja (India): Many Hindu households worship and water the Tulasi (holy basil) plant daily — it has strong medicinal properties and the act keeps a living, oxygen-producing plant thriving. It embeds ecological care into daily ritual.
  • Arghyam to Surya: Offering water to the sun-god at dawn expresses gratitude to Nature’s primary energy source. It reminds us of our dependence on the sun for all food and life.
  • Sacred groves (Dev vans / Orans): Village communities across India protect patches of forest as sacred spaces — cutting trees or hunting within them is considered sinful. These groves preserve biodiversity and protect watershed areas naturally.
  • Bishnoi community (Rajasthan): The Bishnoi people’s 29 principles forbid cutting green trees and harming animals — an explicit environmental ethic rooted in religion. In 1730, Amrita Devi Bishnoi and 363 others gave their lives protecting trees.
  • Tribal traditions: Many Adivasi communities worship rivers, hills and forests as deities (e.g., Marang Buru — the mountain god of the Santals), which institutionally discourages over-exploitation of these natural entities.
  • Jainism — Ahimsa extended to nature: Non-violence towards all living beings, including plants and micro-organisms, encourages minimal consumption and waste — a sustainable lifestyle by religious design.
  • Pongal / Bihu / Onam: Harvest festivals that celebrate agricultural cycles express gratitude to Nature and remind communities of their dependence on soil, water and sun.
Key insight: These traditions encode centuries of ecological wisdom in the language of culture and religion. They work by making restraint sacred — precisely the restraint that keeps shared resources available for all.
T
Think About It · Page 3Look at yourself and the things around you. What is the origin of each of them? At some point they all lead to Nature — even the plastic button on your shirt.
Reflection Answer

Every manufactured object traces its origin to a natural resource. Here are examples:

Everyday ObjectMaterialNatural Source
Shirt / clothCotton or polyesterCotton plant / petroleum (for synthetic fibres)
Plastic buttonPlasticPetroleum (a fossil fuel — non-renewable)
Wooden desk / chairWoodForests (renewable if managed)
Glass windowGlassSilica / sand (mineral)
Steel spoon / utensilSteelIron ore + coal (both non-renewable minerals)
Notebook / paperPaperWood pulp from trees
Rubber eraserRubberRubber tree sap (renewable)
Mobile phoneMetals + glass + plasticVarious ores (lithium, cobalt, silicon) + petroleum
Bread / riceFood grainsSoil + water + sunlight + seeds (agriculture)
Electricity (charging)EnergyCoal / water / sunlight / wind
Conclusion: Even the most synthetic, “man-made” objects — plastic, glass, steel — began as natural resources. This insight is the foundation of Chapter 1: every act of consumption is an act of using Nature. Recognising this is the first step toward using it responsibly.
T
Think About It · Page 4What might be the different criteria we can use to categorise natural resources?
Answer

Natural resources can be sorted using several different criteria depending on what aspect we focus on:

CriterionCategoriesExamples
By useEssential for life / Materials / EnergyAir, water, soil / Wood, marble / Coal, wind
By renewabilityRenewable / Non-renewableSolar, wind, water / Coal, petroleum, gold
By originBiotic (from living things) / Abiotic (non-living)Timber, honey, fish / Water, minerals, air
By distributionUbiquitous / LocalisedAir, sunlight / Iron ore (Jharkhand), oil (Assam)
By state of matterSolid / Liquid / GasCoal, iron ore / Water, petroleum / Natural gas, air
By accessibilityEasily accessible / Technology-dependentRiver water / Deep-sea petroleum, underground coal

The chapter primarily uses two criteria — use and renewability — because they are most relevant to making decisions about sustainable management of resources.

E
Don’t Miss Out · Page 6Communities used to refrain from fishing during spawning season. Commercialisation led to over-fishing of tuna. Do you know of other traditional practices that help the ecosystem stay in balance?
Answer
River renewable@EDUGROWN
Fig. 1.7 — River water is renewable as long as glaciers and forests exist
Timber forest renewable@EDUGROWN
Fig. 1.8 — Timber is renewable if the forest is allowed to regenerate
  • Seasonal fishing bans: Coastal communities in Kerala and Goa still observe a mandatory rest period for fishing (Chavithi or similar local names) during breeding months, allowing fish populations to recover. This is now formalised by law in several states.
  • Sacred groves (Dev vans / Orans): Community-protected forest patches where no harvesting is allowed. They serve as wildlife corridors, water recharge zones and seed banks for surrounding farmland.
  • Crop rotation and fallow seasons: Traditional farmers left land fallow for a season to let soil recover its nutrients — endorsed by Vrikshayurveda, the ancient Indian science of plant care (formalised around the 10th century CE by Surapala).
  • Traditional water bodies: Community-managed tanks (Tamil Nadu), baoris (Rajasthan stepwells) and johads (Rajasthan earthen dams) stored rainwater and recharged groundwater — a community-scale renewable water management system.
  • Honey harvesting practices: Traditional honey collectors (e.g., Kurumba community of Tamil Nadu) harvest only a portion of a hive’s honey, leaving enough for the bee colony to survive and continue pollinating crops.
  • Shifting cultivation (Jhum): North-east Indian tribal communities rotate their cultivation across forest patches, allowing earlier plots to regenerate naturally before being used again. Works sustainably at low population densities.
  • Chipko movement (1970s): Women in Uttarakhand embraced trees to prevent commercial felling — a modern expression of an ancient belief that forests must be protected for water, soil and livelihoods.
Common thread: All these practices encode the same principle — restraint. Take only what is needed; take it only as fast as Nature can replenish it. Modern science calls this “sustainable yield”; traditional communities called it wisdom.
E
Let’s Explore · Page 7Identify human actions in your surroundings that result in Nature losing her ability to restore and regenerate. What types of interventions can be undertaken to restore Nature’s cycle?
Answer
Industrial waste river pollution@EDUGROWN
Fig. 1.10 — Industrial waste often discharged without treatment, poisoning rivers and breaking Nature’s cycle

Human Actions That Disrupt Nature’s Restorative Cycle

  • Industrial effluents into rivers: Chemical waste that cannot decompose enters rivers, making water toxic. The river loses its self-purification ability and can no longer support life.
  • Over-extraction of groundwater: Pumping water faster than monsoon rains can recharge the aquifer (as in Punjab) depletes what is effectively a renewable resource.
  • Plastic pollution: Plastic does not decompose; it blocks soil aeration, enters food chains and prevents water infiltration into the ground.
  • Deforestation: Clearing forests for agriculture, roads or housing removes vegetation cover, causing soil erosion, reducing local rainfall and eliminating wildlife habitat.
  • Chemical farming: Synthetic fertilisers and pesticides destroy soil microorganisms (fungi, bacteria, earthworms) that maintain soil structure and fertility — the soil loses its living, self-renewing character.
  • Urban concretisation: Covering land with concrete prevents rainwater from soaking into the ground, leading to flash floods in wet seasons and groundwater depletion in dry seasons.
  • Fossil fuel burning: Greenhouse gas emissions raise global temperatures, disrupting the weather cycles that govern monsoon, glacial melt and river flow.

Interventions to Restore Nature’s Cycle

  • Afforestation with native species: Planting the trees that originally grew in an area restores the full ecosystem step by step — birds, insects and animals return, soil improves and water recharge resumes.
  • Effluent treatment plants (ETPs): Mandating industrial waste treatment before discharge restores river health and allows aquatic life to return.
  • Rainwater harvesting: Roof-top tanks, check dams, rejuvenated village ponds — returning water to the ground at the rate it is extracted.
  • Organic farming and composting: As Sikkim demonstrated (100% organic by 2016), replacing chemicals with natural inputs restores soil biodiversity, raises farmer incomes and revives local wildlife.
  • Wetland restoration: Wetlands naturally purify water, absorb floodwater and recharge groundwater — restoring them provides multiple ecosystem services at once.
  • Renewable energy transition: Solar, wind and hydropower reduce fossil fuel combustion, slowing climate disruption — the root cause of glacier melt and disrupted rainfall.
E
Let’s Explore · Page 8Take up a small research study to assess the types of renewable resources in your region. What has been the change in their status over time? Make a small report identifying reasons for the change and what may be done.
Model Framework + Sample Answer

This is a field/research activity. Below is a model report structure with sample content for the Bhopal / Madhya Pradesh region. Adapt it to your own area.

1
Identify Renewable Resources in Your Region

MP has: major rivers (Narmada, Betwa, Chambal, Son), significant forest cover (Satpura, Vindhya ranges), abundant solar radiation (300+ sunny days/year), agricultural land (soybean, wheat belt).

2
Assess Current Status

Rivers: Narmada remains relatively healthy (protected by the Narmada Bachao movement). Betwa and Chambal face siltation and reduced flow. Forests: MP has the highest forest cover among Indian states but areas near mining zones (Singrauli) face deforestation. Groundwater: declining in many districts due to over-extraction for irrigation. Solar: largely untapped but government is rapidly expanding solar parks.

3
Change Over Time

In the last 30 years: forest cover has reduced in mining districts; many traditional tanks and ponds have been encroached upon or fallen into disuse; groundwater levels have dropped in central and eastern MP; the Ken-Betwa river link project raises concerns about freshwater diversion.

4
Reasons for Change

Population growth driving more agricultural demand; coal mining (Singrauli is one of India’s biggest coal belts) causing local deforestation and river pollution; urban expansion replacing agricultural land; climate change reducing and making monsoon less reliable.

5
What May Be Done

Revival of traditional tank and stepwell systems for groundwater recharge; strict enforcement of forest protection in mining zones; rapid expansion of rooftop and utility solar to reduce coal dependence; crop diversification to reduce water-intensive monocultures.

Useful sources: State Forest Department Annual Report; India WRIS (Water Resources Information System); Centre for Science and Environment (CSE) reports; interviews with local farmers and forest dwellers.
E
Let’s Explore · Page 8What are the non-renewable resources that you use daily, directly or indirectly? What are the possible renewable substitutes? What are some of the steps we can take to transition to renewables?
Answer
Non-Renewable UsedHow (Direct / Indirect)Renewable Substitute
Coal (for electricity)Lights, fans, phone charging, ACSolar panels, wind turbines
Petroleum (LPG)CookingSolar cooker; biogas from kitchen waste
Petrol / DieselSchool bus, car, auto-rickshawElectric vehicles charged from solar/wind
Plastic (from petroleum)Bags, bottles, packaging, pen bodiesCloth bags; glass/steel bottles; bamboo products
Iron / Steel (from ore)Utensils, vehicle body, constructionRecycled metals (reduces new mining)
Natural gasSome city kitchens; fertiliser productionBiogas; green hydrogen (from solar electrolysis)

Steps to Transition to Renewables

  • At home: Install solar water heaters and rooftop panels; switch to LED lighting; set up a biogas digester from kitchen/farm waste.
  • Transport: Use public transport, walk or cycle for short distances; support / switch to electric vehicles as charging infrastructure grows.
  • Reduce plastic: Carry reusable bags and steel water bottles; avoid single-use plastic; choose products with minimal packaging.
  • Support policy: India’s PM-KUSUM scheme provides solar pumps to farmers (reducing diesel); National Solar Mission targets 500 GW renewable capacity by 2030; Production Linked Incentive (PLI) scheme supports solar panel manufacturing.
  • Community level: Set up school energy audits; start composting to reduce dependence on chemical fertilisers; hold awareness campaigns.
Rajasthan solar park@EDUGROWN
Fig. 1.21 — Bhadla Solar Park, Rajasthan — one of the world’s largest, can power ~15% of Rajasthan’s electricity needs
Solar farm Raichur@EDUGROWN
Fig. 1.22 — Solar farm near Raichur, Karnataka
India’s global leadership: India and France co-founded the International Solar Alliance (ISA) in 2015 — a coalition of sunshine-rich countries committed to harnessing solar power. This represents both environmental responsibility and economic opportunity for India.
E
Let’s Explore · Page 9Observe the map in Fig. 1.11. Notice the uneven distribution of important minerals. What types of resources are available in your region? How are they distributed?
Answer
India minerals distribution map@EDUGROWN
Fig. 1.11 — Distribution of Coal, Oil, Iron Ore and Bauxite across India — notice the heavy concentration in the eastern and central peninsular zone

Observations from the Map

  • Coal is heavily concentrated in the Damodar valley belt (Jharia, Raniganj, Bokaro — Jharkhand/West Bengal) and in Korba (Chhattisgarh), Singareni (Telangana) and Neyveli (Tamil Nadu — lignite). These are ancient Gondwana geological basins.
  • Oil is found mainly along the western coast (Mumbai High, Bassein, Ankleshwar, Kalol — all in the Arabian Sea sedimentary basin) and in Assam (Digboi — India’s oldest oilfield, 1889; also Naharkatia, Moran, Hugrijan, Makum).
  • Iron Ore is concentrated in the eastern peninsular zone: Bailadila (Chhattisgarh), Keonjhar and Mayurbhanj (Odisha), Ballari, Kudremukh and Chitradurga (Karnataka), Gua (Jharkhand). India is among the world’s top 5 iron ore producers.
  • Bauxite (aluminium ore) at Katni and Amarkantak (MP), Korba and Bilaspur (Chhattisgarh), and parts of Odisha.

Pattern

Mineral distribution is highly uneven — determined by ancient geological processes, not by population or political boundaries. The eastern and central peninsular zone (Jharkhand-Odisha-Chhattisgarh triangle) is extraordinarily mineral-rich, while the densely populated Indo-Gangetic plains have almost no mineral deposits.

For Madhya Pradesh / Bhopal region: MP has coal (Singrauli — one of India’s largest coal reserves), diamond (Panna), limestone (used for cement), bauxite (Amarkantak area), manganese and dolomite. The Narmada and other rivers are major renewable water resources.
E
Let’s Explore · Page 10Select any two natural resources. Gather information about their availability, mark them on a map, and discuss the implications of extracting them for current and future generations. Suggest responsible ways to use Nature’s gifts.
Sample Answer (Coal + Iron Ore)

Resource 1: Coal

Availability: Jharkhand (Jharia, Bokaro), West Bengal (Raniganj), Chhattisgarh (Korba), MP (Singrauli), Telangana (Singareni), Tamil Nadu (Neyveli-lignite).

  • Economic activities: Thermal power generation; steel manufacture (coking coal); millions of mining jobs; railways built to transport coal to factories and ports.
  • Current generation benefits: Cheap, abundant electricity; industrial growth; livelihoods for mining communities.
  • Future generation costs: Reserves estimated to last ~50 years. Burning coal is the leading cause of air pollution and CO2 emissions. Open-cast mining destroys forests and displaces tribal communities. Underground mines cause subsidence and groundwater contamination.
  • Responsible use: Accelerate transition to solar and wind; improve thermal plant efficiency to reduce coal per unit of power; rehabilitate mined areas; protect communities depending on coal for livelihoods during the transition.

Resource 2: Iron Ore

Availability: Odisha (Keonjhar, Mayurbhanj), Jharkhand (Singhbhum), Chhattisgarh (Bailadila), Karnataka (Ballari, Kudremukh), Goa.

  • Economic activities: Steel manufacturing at Bhilai, Jamshedpur, Rourkela; export earnings; construction, automobiles, shipbuilding, machinery.
  • Current generation benefits: India is a major steel producer; steel is essential for infrastructure, housing and industry.
  • Future generation costs: Iron ore is non-renewable; reckless open-cast mining in ecologically sensitive areas (Western Ghats, tribal forests) causes severe deforestation, river siltation and displacement.
  • Responsible use: Maximise scrap steel recycling to reduce reliance on fresh ore; enforce environmental clearances strictly; ensure mining royalties genuinely benefit displaced communities; restore mined areas after extraction.
Observation: Both coal and iron ore are concentrated in the same eastern-central peninsular belt (Jharkhand-Odisha-Chhattisgarh), making this zone both the most economically vital and the most environmentally stressed part of India — a classic “resource curse” territory that India must manage with care.
E
Let’s Explore · Page 10Find out about an international conflict over a shared natural resource. Discuss your findings in the class.
Answer
Brahmaputra shared river map@EDUGROWN
Fig. 1.12 — Shared waters of the Brahmaputra, originating in Tibet (China) as Yarlung Tsangpo, flowing through India and Bangladesh as Brahmaputra and Jamuna

Case 1: The Brahmaputra / Yarlung Tsangpo (India – China – Bangladesh)

The river originates on the Tibetan Plateau (where China has built large dams for hydropower), flows into India’s Arunachal Pradesh and Assam (where it is the Brahmaputra), and enters Bangladesh (as the Jamuna). India fears upstream dams could be used to withhold water in dry seasons or release floods in wet seasons. There is no formal water-sharing treaty between the three nations, making this a persistent source of geopolitical tension.

Case 2: The Nile (Ethiopia – Egypt – Sudan)

Ethiopia built the Grand Ethiopian Renaissance Dam (GERD) on the Blue Nile — the largest dam in Africa. Egypt, which depends on the Nile for over 90% of its fresh water and has long viewed this water as its historical right, fears the dam will severely reduce its supply. Years of negotiations brokered by the African Union have not produced a binding water-sharing agreement. Ethiopia argues it has the right to develop its natural resources; Egypt argues its survival depends on the Nile’s flow. This is one of the world’s most watched water conflicts.

Case 3: South China Sea (Fisheries + Oil + Gas)

China, Vietnam, Philippines, Malaysia, Brunei and Taiwan all claim parts of the South China Sea, which contains large potential oil and gas reserves and is one of the world’s most productive fisheries. China has constructed artificial islands to assert territorial claims. The Philippines won a landmark international arbitration ruling in 2016 — which China refuses to recognise. This conflict shows how overlapping resource interests can challenge international law.

Common pattern: Natural resources — water, fisheries, oil — do not respect political boundaries, but political power determines who extracts and benefits. Fair sharing requires international treaties, transparent data-sharing, and increasingly, joint climate adaptation plans. The alternative is conflict.
E
Let’s Explore · Page 11What do you think are the different inputs required to enable the use of the natural resources available in different geographical areas?
Answer
Mettur dam Kaveri@EDUGROWN
Fig. 1.13 — Mettur dam on the Kaveri, Tamil Nadu — engineering required to convert river water into irrigation and power
Microhydel Himachal Pradesh@EDUGROWN
Fig. 1.2 — Microhydel plant in Himachal Pradesh converting flowing mountain water into electricity

Having a natural resource in a region is necessary but not sufficient. Multiple inputs are needed to actually use it:

InputWhat It MeansExample
TechnologyMachines, equipment and processes to extract or convert the resourceDrilling rigs for petroleum; solar panels for sunlight; turbines for water / wind
Capital (finance)Money to build infrastructure, buy equipment and pay workersBuilding a dam; setting up a mine; installing a solar park
Skilled labourTrained engineers, geologists, technicians, operatorsMining engineers in Jharkhand; hydro engineers in Himalayan states
InfrastructureRoads, railways, ports, pipelines to transport resources from site to factory/marketDedicated coal freight corridors from Jharia to steel plants
Scientific knowledgeGeology, hydrology, metallurgy, agronomy — to find, assess and process resourcesGeological Survey of India mapping mineral deposits
Policy & governanceRegulations, environmental clearances, equitable distribution policies, dispute resolutionWater tribunals for river disputes; mining permits; ISA for solar
Ecological awarenessUnderstanding environmental limits to avoid over-exploitationEnvironmental Impact Assessments; groundwater extraction limits
The “resource curse” connection: Countries rich in resources but lacking skilled labour, institutions and technology often fail to convert their natural wealth into lasting prosperity. India has largely avoided this by investing in industries, technical education (IITs, NITs) and governance systems. The chapter’s “Factors of Production” section (later in the book) explores this further.

Exercise · Page 19Questions and Activities — Full Answers

Detailed solutions to all five end-of-chapter questions from the NCERT textbook.

1
Exercise Question 1What can make what is today a renewable resource non-renewable tomorrow? Describe some actions that can prevent this from happening.
Detailed Answer

What makes a renewable resource non-renewable?

A renewable resource remains renewable only as long as the natural rhythm of restoration and regeneration is not disturbed. When the rate of extraction or destruction exceeds the rate at which Nature can replenish the resource, it effectively becomes non-renewable — at least on human timescales.

Core principle: Extraction rate > Regeneration rate → Resource depletes toward zero. Renewability is not a permanent property — it is a condition that must be maintained.

Key Examples

ResourceHow It Becomes Non-RenewableReal-World Example
GroundwaterExtracted faster than annual rainfall can recharge the aquiferPunjab — 80% area “over-exploited”; water now at 30+ metres depth; chemicals from pesticides contaminate it
Forests / TimberTrees harvested faster than the forest can grow replacementsDeforestation for agriculture, urban expansion across India and globally
Fish populationsOver-fishing beyond reproductive capacity of the speciesTuna populations collapsing globally; some agreements reached but decline continues
Soil fertilitySynthetic chemicals destroy soil microorganisms; topsoil erodesPunjab soil degradation after decades of Green Revolution chemical farming
River waterGlaciers melting faster than precipitation can replace them (climate change)Himalayan glaciers shrinking, threatening water security of Gangetic plains
Clean airEmissions overwhelm the atmosphere’s natural purification capacitySevere AQI crises in Delhi and other cities make breathable air effectively scarce
Groundwater extraction pump@EDUGROWN
Fig. 1.15 — Groundwater extraction in Punjab: pumped from deeper and deeper levels as the water table falls
Punjab water level map 2022@EDUGROWN
Fig. 1.17 — Depth-to-water-level map, Punjab & Chandigarh (June 2022): dark red = 20–40+ metres below ground

The Punjab Groundwater Crisis — Detailed

  • 1960s: Green Revolution shifted farmers to high-yielding wheat and paddy varieties requiring far more water than traditional seeds.
  • Free electricity supply → unlimited pumping with no incentive to conserve.
  • Chemical pesticides and fertilisers dissolved into the groundwater, causing cancer and other diseases in several districts.
  • Result: Almost 80% of Punjab is “over-exploited.” Water table has fallen to 30+ metres — a renewable resource has become practically non-renewable on human timescales. Short-term food security was achieved at the cost of long-term water security.

Actions to Prevent Renewables Becoming Non-Renewable

1
Set scientifically determined sustainable extraction limits

Determine the maximum safe yield — e.g., how much groundwater can be pumped annually without lowering the water table. Enforce these limits with metered extraction and pricing that discourages wasteful use.

2
Revive traditional practices of restraint

Seasonal fishing bans; sacred groves; fallow farming seasons; crop rotation — these encode time-tested, proven sustainability wisdom. Recognise and legally protect them.

3
Active water harvesting and recharge

Build check dams and rejuvenate traditional tanks / johads; mandate rooftop rainwater harvesting in urban buildings; return water to the aquifer at the rate it is extracted.

4
Transition to organic and regenerative farming

As Sikkim demonstrated in 2016 (100% organic state), replacing chemicals with compost and natural inputs restores soil life, increases biodiversity and raises farmer incomes by 20% on average.

5
Reduce fossil fuel combustion

Switching to solar and wind power slows climate change, which is the primary driver of glacier melt and disruption of the water cycle that feeds rivers and groundwater.

6
Afforestation with native species

Rebuild forests to restore water retention, prevent soil erosion, create wildlife habitat and draw carbon from the atmosphere — all of which support the natural regenerative cycle.

7
Strong policy and community governance

Environmental protection laws with real enforcement; community management of shared resources (forests, fisheries, groundwater); transparent environmental monitoring; penalties for over-extraction.

To summarise: A resource becomes non-renewable when extraction rate > regeneration rate. The solution is to bring the extraction rate back below the regeneration rate AND actively support regeneration (e.g., plant trees, recharge aquifers, allow fish stocks to recover).
2
Exercise Question 2Name five ecosystem functions that serve humans.
Answer

Ecosystem functions are the natural processes that ecosystems carry out on their own. When these processes benefit humans, we call them ecosystem services. The function exists regardless of whether humans are present; the service is defined from a human perspective.

#Ecosystem FunctionEcosystem Service (how humans benefit)Example
1Oxygen production (photosynthesis)We breathe the oxygen produced. A mature tree produces ~275 litres/day; a human needs ~350 litres/day — we need forests.Urban forests act as the “lungs” of a city; reducing respiratory disease burden.
2Water filtrationForests, wetlands and soil filter water naturally, providing clean drinking and irrigation water without expensive treatment.Forests of Meghalaya filter water into springs and rivers supplying millions.
3Soil formation and maintenanceDecomposers (bacteria, fungi, earthworms) break down dead matter into humus, continuously renewing soil fertility and structure for agriculture.The deep, fertile black cotton soils of Maharashtra maintain their productivity through natural decomposition cycles.
4PollinationBees, butterflies, birds and other animals pollinate flowering plants, enabling fruit and seed production. ~75% of flowering plant species — including most food crops — depend on pollinators.Apple orchards in Himachal Pradesh depend on bee pollination; without pollinators, yields collapse.
5Climate regulationForests absorb CO2, regulate local temperature and humidity, and influence rainfall patterns through evapotranspiration — making entire regions suitable for agriculture and habitation.The Western Ghats forests moderate the monsoon and maintain river flow of the Cauvery, Krishna and Godavari.

Three Additional Important Ecosystem Functions

  • Flood and erosion control: Forest root systems hold soil in place; wetlands absorb and slow floodwater, protecting settlements from flash floods and landslides.
  • Natural pest control: Predator-prey relationships keep pest populations in check. Owls and snakes control rodents in farmland; wasps parasitize crop pests. Without this, agricultural losses would be massive.
  • Carbon sequestration: Forests, soils and oceans store billions of tonnes of carbon, slowing the pace of climate change and keeping the Earth’s atmosphere within habitable temperature limits.
Important: The chapter notes that a forest naturally filters water, prevents soil erosion, and provides habitat for animals — these are ecosystem functions. When we receive clean water, protected farmland and pollinated crops because of that forest, we are receiving ecosystem services. Destroying the forest destroys both the function and the service.
3
Exercise Question 3What are renewable resources? How are they different from non-renewable ones? What can people do to ensure that renewable resources continue to be available for our use and that of future generations? Give two examples.
Detailed Answer

Part A: What are Renewable Resources?

Renewable resources are natural resources that are restored and regenerated by Nature over a reasonable period of time, as long as the natural rhythm of restoration is not disturbed. They exhibit Nature’s restorative and regenerative principle — the ability to heal, renew and create new life.

Examples: Solar energy, wind energy, river water, forests and timber, agricultural soil (renewed by decomposition), fish populations, crops.

River renewable resource@EDUGROWN
Fig. 1.7 — River water: renewable as long as glaciers and forests that feed it are protected
Timber renewable forest@EDUGROWN
Fig. 1.8 — Timber is renewable if we allow the forest to regenerate between harvests

Part B: Renewable vs Non-Renewable Resources

AspectRenewableNon-Renewable
DefinitionCan be replenished by Nature within human timescales if used within safe limitsFormed over millions of years; cannot be replenished at the rate we use them
ExamplesSunlight, wind, water, forests, soil, fishCoal, petroleum, natural gas, iron ore, copper, gold
AvailabilityContinuously available if managed sustainablyFinite stock — will eventually run out
Environmental impactGenerally low (solar, wind produce almost no emissions)High — mining and burning fossil fuels cause severe pollution and climate change
India’s coal reservesEstimated to last ~50 more years at current rates
Key conditionExtraction rate must stay below regeneration rateMust be used judiciously to last until sustainable alternatives are found

Part C: What can people do to keep renewables available? (Two examples)

1
Example 1 — Managing Groundwater (a renewable resource)

Groundwater is renewed each year by monsoon rainfall soaking into the earth. But Punjab’s crisis shows what happens when extraction far outpaces recharge.

What people can do:

  • Rainwater harvesting: Rooftop tanks, check dams, johads and rejuvenated ponds capture monsoon rain and return it to the aquifer.
  • Drip and sprinkler irrigation: Uses 30–60% less water than flood irrigation for the same crop yield — adopted rapidly under the PM Krishi Sinchayee Yojana.
  • Change cropping patterns: Grow crops matched to local rainfall (not water-intensive paddy in semi-arid areas). MP example: grow lentils and sorghum instead of paddy in rain-shadow areas.
  • Policy: Meter water use; price it to discourage waste; withdraw the free electricity subsidy that incentivises unlimited pumping.
Crop failure soil degradation@EDUGROWN
Fig. 1.14 — Crop failure from over-use of chemical fertilisers: soil degradation from breaking Nature’s cycle
Wet paddy fields Punjab@EDUGROWN
Fig. 1.16 — Wet paddy farming requires enormous water volumes, stressing groundwater in semi-arid regions
2
Example 2 — Managing Forests / Timber (a renewable resource)

Forests are renewable — trees grow, fall, decompose and enrich the soil for new growth in a continuous cycle. But harvesting faster than the forest regenerates destroys this cycle.

What people can do:

  • Selective and limited harvesting: Take only mature trees; leave young trees; never clear-cut an entire area. Follow Vrikshayurveda principles of sustainable forest management.
  • Afforestation with native species: Plant the trees that originally grew in a deforested area — not just fast-growing commercial varieties — to restore the full ecosystem (soil, water, biodiversity).
  • Community forest management: Under Joint Forest Management (JFM) in India, communities have a stake in protecting and benefiting from their local forests, making conservation self-sustaining.
  • Use alternatives: Bamboo (grows extremely fast), recycled wood, mud (Auroville Earth Institute), stone and plant-based composites reduce pressure on natural forests.
Organic farming Sikkim@EDUGROWN
Fig. 1.20 — Organic farming in Sikkim: soil restored, biodiversity revived, farmer incomes up 20% after going 100% organic in 2016
Auroville earth architecture sustainable@EDUGROWN
Fig. 1.19 — Auroville mud building: traditional materials combined with modern technique for sustainable, low-pollution construction
Golden rule: Extraction rate < Regeneration rate → Resource remains renewable forever.
Extraction rate > Regeneration rate → Resource depletes toward exhaustion.
4
Exercise Question 4Identify cultural practices in your home and neighbourhood that point to mindfulness in the use of natural resources.
Answer
Tulasi puja wellbeing@EDUGROWN
Fig. 1.6 — Tulasi puja: daily worship of holy basil reflects care for a living, oxygen-producing plant
Arghyam Surya sun offering@EDUGROWN
Fig. 1.9 — Arghyam to Surya: gratitude to the sun expresses acknowledgement of our dependence on Nature’s primary energy source

Home Practices

  • Tulasi puja: Worshipping and daily watering of the Tulasi (holy basil) plant keeps a medicinal, oxygen-producing, insect-repelling plant alive. It encodes ecological care into daily ritual.
  • Arghyam to Surya: Offering water to the rising sun at dawn expresses gratitude to Nature’s primary energy source and establishes a daily connection with the natural cycle of day and night.
  • Not wasting food: The practice of finishing everything on the plate (often reinforced as a religious duty) reduces unnecessary demand on agricultural land, water and energy.
  • Reuse and repair: Traditional households repaired clothes, vessels and tools rather than discarding them (old sarees → kantha quilts; broken pots mended by potters; vessels repaired by tin-smiths). This reduces raw material consumption.
  • Kitchen composting: Vegetable peels and food scraps returned to a kitchen garden as compost — a closed-loop system that returns nutrients to soil and eliminates waste.
  • Seasonal and local eating: Traditional cooking is built around what grows locally in season — minimising food transport and cold-storage energy. Eating local mangoes in summer; root vegetables in winter.

Neighbourhood and Community Practices

  • Sacred trees: Peepal, Banyan and Neem trees are traditionally never cut — this protects old, large trees which are the most ecologically important (most oxygen, most shade, most habitat for birds and insects).
  • Traditional water bodies: Village tanks, baoris (step-wells) and ponds were community-managed rainwater harvesting systems. Many communities are reviving these as part of Jal Shakti Abhiyan.
  • Seasonal fishing restraint: As the chapter notes, traditional coastal communities refrained from fishing during breeding months, letting fish populations recover — now enshrined in state fishing regulations.
  • Harvest festivals: Pongal, Bihu, Vaisakhi, Onam all celebrate the agricultural cycle and express gratitude to Nature — embedding seasonal awareness and a sense of dependence on natural rhythms into culture.
  • Bishnoi tradition: The Bishnoi community’s 29 principles explicitly prohibit cutting green trees and killing animals. In 1730, Amrita Devi Bishnoi and 363 others died defending trees — an example of ecological commitment in practice.
Connecting to the text: The Bhagavad Gita’s concept of lokasangraha — acting for the wellbeing of all, transcending personal desires — is the philosophical foundation of all these practices. They work by making personal restraint a sacred duty, ensuring shared natural resources (water, air, forests, soil) remain available for the whole community.
5
Exercise Question 5What are some considerations to keep in mind in the production of goods for our current use?
Detailed Answer
Jaisalmer fort sandstone Rajasthan@EDUGROWN
Fig. 1.18 — Jaisalmer Fort: 12th-century sandstone structure showing sustainable, locally-sourced, low-pollution building traditions
Offshore oil rig petroleum@EDUGROWN
Fig. 1.3 — Offshore oil rig: extracting petroleum, a non-renewable resource whose combustion drives climate change and air pollution

When goods are produced for current use, several important considerations must guide our choices so that production is sustainable, equitable and does not compromise the well-being of future generations.

1. Pollution and Environmental Impact

Every production process creates waste and emissions. The chapter highlights cement as one of the most polluting industries: it releases fine dust (damaging lungs of humans and animals), causes air, soil and water pollution, and settles on plant leaves reducing photosynthesis and agricultural yields. The Central Pollution Control Board sets guidelines to minimise cement factory emissions. For all industries, we must ask: Can the process be made cleaner? Must waste be treated before release?

2. Sustainability of the Resources Used

Production must not deplete resources beyond their regeneration capacity. Non-renewables like coal, petroleum and iron ore should be used judiciously — extracted at rates that give humanity enough time to find sustainable alternatives. Wherever possible, shift to renewable inputs (e.g., solar energy instead of coal to power a factory).

3. Equity — Who Bears the Cost?

The benefits of production typically flow to consumers and companies, while the environmental and health costs often fall on communities near mines, factories and polluted rivers — communities that may be least able to protect themselves. Responsible production asks: Are displaced communities rehabilitated? Are mining royalties genuinely reinvested in the region? Is pollution causing disease in surrounding villages?

4. Use of Local Materials and Labour

Production using local materials and skills is preferable: it reduces transportation energy, provides local livelihoods, and designs for local climate conditions. The Auroville Earth Institute (Fig. 1.19) demonstrates this: mud buildings using traditional techniques combined with modern engineering are sustainable, locally appropriate, and provide local employment. The Jaisalmer Fort (Fig. 1.18) has stood for 800+ years built from local sandstone — a testament to sustainable, locally-sourced construction.

5. Full Lifecycle Thinking: Reduce → Reuse → Recycle

Every product has a lifecycle — raw material extraction → processing → use → disposal. Each stage has environmental costs. Responsible production considers all stages:

  • Reduce: Minimise the raw material and energy input per unit of goods produced.
  • Reuse: Design products that can be repaired and reused rather than thrown away after one use. (Traditional households were masters of this.)
  • Recycle: Use recycled materials as inputs (e.g., recycled steel requires 74% less energy than making new steel from ore, and dramatically reduces iron ore mining demand).

6. Transition to Alternatives and Innovation

The move towards creating alternative materials that reduce pollution is actively underway — new plant-based composites, recycled plastic construction boards, bamboo products, and 3D-printed components from waste materials. Traditional methods and modern technology are being combined to create materials that are sustainable in production, locally appropriate in climate and use, and provide local employment.

7. Intergenerational Responsibility

The most fundamental consideration: production today must not foreclose options for future generations. The clean water, fertile soil, stable climate and mineral resources we use in production are, in a sense, borrowed from our children and grandchildren. The Bhagavad Gita’s lokasangraha — acting for the wellbeing of all — demands we include all future generations, not just those alive today, in our calculation of “all.”

Sustainable production checklist:
✓ Uses renewable or recycled inputs wherever possible
✓ Treats and minimises pollution at every stage
✓ Treats workers and affected communities fairly and compensates displacement
✓ Considers the full lifecycle of the product (reduce, reuse, recycle)
✓ Does not deplete any resource beyond its regeneration rate
✓ Passes on intact natural wealth and a stable climate to future generations
Exploring Society: India and Beyond  |  Grade 8 Part 1  —  Chapter 1: Natural Resources and Their Use
Solutions compiled for educational purposes by @edugrown

Leave a Reply

Your email address will not be published. Required fields are marked *

error: Content is protected !!