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

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