Chapter 7 Conservation of Plants and Animals mcqs & important question | class 8th

MCQ Questions for Class 8 Science: Ch 7 Conservation of Plants and Animals

1. Ill effect of deforestation is it

(a) Increases temperature of earth

(b) Increases pollution level

(c) Increases CO₂ level of atmosphere

(d) All of the above

► (d) All of the above

2. Which of the following is an abiotic component?
(a) Cow
(b) Grass
(c) Temperature
(d) Bacteria
► (c) Temperature

3. The place of living of an organism in environment is called:

(a) Home

(b) Resort

(c) Habitat

(d) Reservoir

► (c) Habitat

4. The species which are at the verge of the extinction are called:

(a) Endemic

(b) Extinct

(c) Endangered

(d) None of these

► (c) Endangered

5. Which of the following are the effects of the mismanagement of timber logging?

(a) Floods

(b) Soil erosion

(c) Aforestation

(d) Both (A) and (B)

► (d) Both (A) and (B)

6. Which of the following is/are caused due to uncontrolled deforestation?

(a) The destruction of habitats

(b) Landslides

(c) Floods

(d) All of these

► (d) All of these

7. Deforestation takes place:

(a) Only by human activities

(b) Only by natural reasons.

(c) Both of these

(d) None of these

► (c) Both of these

8. Our biosphere is made up of various ecosystems. All ecosystems are:

(a) inter related

(b) inter connected

(c) intraspecific

(d) both inter connected & inter related

► (d) both inter connected & inter related

9. What is the variety of life and the diversity of genes, species and ecosystems of a region and their inter connectedness called?

(a) Biosphere

(b) Biodiversity

(c) Bioconservation

(d) Biocommunity

► (b) Biodiversity

10. Species is a group of population capable of :

(a) interequilibrium

(b) interfeeding

(c) intercommunication

(d) interbreeding

► (d) interbreeding

11. A place in environment where an organism lives is ________

(a) Home

(b) Resort

(c) Habitat

(d) Reservoir

► (c) Habitat

12. Finest teak of India is obtained from :

(a) Forests of Kaziranga national park

(b) Forests of Satpura

(c) Sunderbans

(d) Forests of Kanha national park

► (b) Forests of Satpura

13. Which of the following is/are advantage(s) of forests?

(a) Forests provide us with oxygen.

(b) They protect soil and provide habitat to a large number of animals.

(c) They help in bringing good rainfall in neighboring areas.

(d) All of these

► (d) All of these

14. Cutting of a forest at a large scale is called:

(a) Deforestation

(b) Reforestation.

(c) Afforestation

(d) All of these.

► (a) Deforestation

15. Those species which exist in small numbers are called:

(a) extinct species

(b) rare species

(c) few species

(d) indeterminate species

► (b) rare species

16. Which of the following are the uses of IUCN Red List?

(a) Developing awareness about the importance of threatened biodiversity

(b) Identification and documentation of endangered species

(c) Providing a global index of the decline of biodiversity

(d) All of these

► (d) All of these

17. Fauna indicates for

(a) Plants

(b) Animals

(c) Both plants and animals

(d) None of these

► (b) Animals

18. The growing of more and more plants is called:

(a) Deforestation

(b) Reforestation

(c) Both of these

(d) None of these

► (b) Reforestation

19. Term biodiversity was coined by:

(a) Haeckal

(b) Wilson

(c) Stanley

(d) Diener

► (b) Wilson

20. A sustainable functional unit of biosphere is called:

(a) Ecology

(b) Ecomodem

(c) Ecosystem

(d) Ecomism

► (c) Ecosystem

21. Which of the following are living resources in nature?

(a) Flora

(b) Fauna

(c) Soil

(d) Both (A) and (B)

► (d) Both (A) and (B)

22. Which of the following shows a modern technology measure that helps preserve and conserve the environment?

(a) The practising crop rotation

(b) The recycling of paper, plastics and metal cans

(c) Using machines in agricultural industry

(d) Converting industrial wastes into biogas

► (b) The recycling of paper, plastics and metal cans

23. The first reserve forest of India is :

(a) Jim Corbett national park

(b) Sunderbans

(c) Satpura national park

(d) Eastern Ghats

► (c) Satpura national park

24. What is the main aim of conserving living organisms?

(a) To increase the world’s population of organisms

(b) To prevent the extinction of endangered species

(c) To help the students of botany and zoology

(d) To help in ecotourism

► (b) To prevent the extinction of endangered species

25. The variety of animals, plants and microbes found in a particular area constitutes that area

(a) Biostatistics

(b) Biomagnification

(c) Biovariety

(d) Biodiversity

► (d) Biodiversity

26. Biotic components of an ecosystem does not include :

(a) Minerals

(b) Mammals

(c) Mosses

(d) Microbes

► (a) Minerals

Class 8 Science Chapter 7 Extra Questions and Answers Conservation of Plants and Animal

Extra Questions for Class 8 Science Chapter 7 Conservation of Plants and Animal with Answers Solutions

Conservation of Plants and Animal Class 8 Extra Questions Very Short Answer Type

Question 1.
What is sanctuary?
Answer:
An area where animals are protected from any disturbance to them and their habitat is called a – sanctuary.

Question 2.
Name the major threat to the survival of organism.
Answer:
Deforestation

Question 3.
Write the names of some parks and sanctuaries.
Answer:
Dudhwa National Park, Bharatpur Bird Sanctuary, Kaziranga National Park, Nelapattu Bird Sanctuary, etc.

Question 4.
Write two natural causes of deforestation.
Answer:

• Severe droughts
• Forest fires

Question 5.
Give examples of flora.
Answer:
Teak, sal, mango, jamun, arjun, etc.

Question 6.
Give examples of fauna.
Answer:
Elephant, tiger, wild bear, etc.

Question 7.
Name two endemic fauna.
Answer:
Giant squirrel, bison

Question 8.
Name some forest products.
Answer:
Paper, wood, timber, vegetables, fruits, rubber, etc.

Question 9.
What is the name of the reserved land used to protect biodiversity?
Answer:
Biosphere Reserve

Question 10.
Name the first Reserve Forest of India.
Answer:
Satpura National Park

Question 11.
Name products obtained from animals for which they are hunted.
Answer:
Skin, fur, horn, eggs, flesh, etc.

Question 12.
Does soil erosion affect the fertility of soil?
Answer:
Yes

Question 13.
List the names of some migratory birds.
Answer:

• Siberian crane
• Bar-headed goose
• Arctic tern
• Surkhab

Question 14.
Write the names of some extinct animals.
Answer:
Dodo, dinosaurs, mammoth, etc.

Question 15.
When was Project Tiger launched?
Answer:
April 1,1973

Question 16.
How many rock shelters are there in Pachmarhi Biosphere Reserve?
Answer:
55

Question 17.
Name two wildlife sanctuaries present in Pachmarhi Biosphere Reserve.
Answer:
Pachmarhi, Bori

Question 18.
What is the plantation of new plants called?
Answer:
Reforestation

Question 19.
What is a zoo?
Answer:
A place where animals receive protection is called a zoo.

Question 20.
Name one reason owing to which birds migrate.
Answer:
For breeding

Conservation of Plants and Animals Class 8 Extra Questions Short Answer Type

Question 1.
What do you mean by deforestation?
Answer:
The cutting of trees on a large scale is called deforestation.

Question 2.
Define national park.
Answer:
A national park is an area reserved for wildlife where they can freely use the habitats and natural resources.

Question 3.
What are flora?
Answer:
The plant species found in a particular area are called flora.

Question 4.
What are fauna?
Answer:
The animal species found in a particular area are called fauna.

Question 5.
What do you mean by species?
Answer:
Species is a group of population which are capable of interbreeding.

Question 6.
What is Satpura Tiger Reserve?
Answer:
It is a Project Tiger which was launched by the government in the country to protect the tigers.

Question 7.
What are endangered animals?
Answer:
The animals whose numbers are diminishing to such a level that they might face extinction are known as ‘endangered animals.’

Question 8.
Define ‘Red Data Book.’
Answer:
A book that keeps records of all the endangered plant and animal species is called a Red Data Book.

Question 9.
Define migratory birds.
Answer:
The birds which cover long distances to reach another land for some reasons are known as migratory birds.

Question 10.
Mention the causes of deforestation.
Answer:
The cause of deforestation could be:

• Forest fires
• Building houses, factories
• Severe droughts
• Using wood for some purposes
• Human encroachment and procuring land for cultivation

Question 11.
What do you mean by desertification?
Answer:
The conversion of fertile land into deserts is called desertification.

Question 12.
What is biodiversity?
Answer:
The diversity of plant and animal life in a particular habitat (or in the world as a whole) is called bio-diversity.

Question 13.
Define biosphere.
Answer:
Biosphere is that part of the earth in which living organisms exist or which supports biological diver-sity.

Question 14.
Define endemic species.
Answer:
The species of plants and animals which are found exclusively in a particular area are called endemic species.

Question 15.
Explain the term ecosystem.
Answer:
Ecosystem is a system formed by the interaction of a community of organisms with their physical environment.