Chapter 5 Minerals and Energy Resources Assertation & Reasoning Questions Class 10th Social Science

ASSERTION AND REASON
DIRECTION : In the following questions, a statement of
assertion is followed by a statement of reason. Mark the
correct choice as :
(a) If Both assertion and reason are true and reason
is the correct explanation of assertion.
(b) If Both assertion and reason are true but reason is
not the correct explanation of assertion.
(c) If Assertion is true but reason is false.
(d) If Both assertion and reason are false.

1. Assertion : Uses of iron brought a radical change in
   human life.
   Reason : Different kinds of tools where invented by
   using minerals
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Revolution in agriculture-different type of tools
   invented like axe, hook, plough etc., revolution in
   industry-different tools and machines like spinning
   and also revolution in transportation- bullock- cart,
   ships, boats etc brought a radical change in human life
2. Assertion : Mining activity is often called a “Killer
   Industry”.
   Reason : Mining helps in agriculture.
   Ans : (c) Assertion is true but reason is false.
   Mining is a source a deforestation, high risk is involved,
   water sources get contaminated and mining doesn’t
   help in agriculture.
3. Assertion : Iron ore is the basic mineral and the
   backbone of India.
   Reason : India is rich in good quality Iron ore.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Iron ore is the basic mineral and the backbone of
   industrial development. India is rich in good quality
   iron ores. Iron ore is exported largely from India,
   however the reason does not justify the assertion.
4. Assertion : Mica is a metallic mineral.
   Reason : Mica mineral is the basic raw material for
   cement industry
   Ans : (d) Both assertion and reason are false.
   Mica is a mineral made up of a series of plates or
   leaves. It is a non-metallic mineral and it is used in
   electric and electronic industries.
5. Assertion : Minerals are an indispensable part of our
   lives.
   Reason : Minerals have a universal use, they are used
   to manufacture everything we use in our day to day
   lives.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Minerals are found in varied forms in nature. Even the
   food that we eat contains minerals. Almost everything
   we use, from a tiny pinto a towering building or a big
   ship, all are made from minerals.
6. Assertion : Geological processes of mineral formation
   is slow
   Reason : Minerals resources are consumed way quickly
   than they are formed.
   Ans : (b) Both assertion and reason are true but
   reason is not the correct explanation of assertion.
   Mineral formation is slow as it requires millions of
   years to be created but are used very quickly in
   comparison.
7. Assertion : Thermal power stations are located on or
   near the coalfields.
   Reason : Coal is a bulky material, which loses weight
   on use as it is reduced to ash. Hence, heavy industries
   and thermal power stations are located on or near the
   coalfields.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   The reason justifies the assertion.
8. Assertion : Natural gas is referred as an environment
   friendly fuel.
   Reason : Natural gas contains low carbon dioxide
   emissions.
   Ans : (a) Both assertion and reason are true and
   reason is the correct explanation of assertion.
   Natural gas is considered an environment friendly fuel
   because of low carbon dioxide Emissions.
9. Assertion : Increased use of fossil fuels creates a
   healthy environment.
   Reason : Fossil fuels such as coal, oil and gas are easily
   obtained from natural resource.
   Ans : (d) Both assertion and reason are false.
   Increased use of fossil fuels causes serious environmental
   problems. Hence, there is a pressing need to use
   renewable energy sources like solar energy, wind, tide,
   biomass and energy from waste material.
10. Assertion : Conservation of Energy Resources is
    essential.
    Reason : Energy is a basic requirement for economic
    development.
    Ans : (a) Both assertion and reason are true and
    reason is the correct explanation of assertion.
    Energy saved is energy produced, the economic
    development plans implemented since Independence
    necessarily required increasing amounts of energy to
    remain operational.