Previous Year Question Papers of ENVIRONMENTAL SCIENCE CLASS 11th JKBOSE

Previous Year Question Papers of
Jammu and Kashmir Board of School Education
ENVIRONMENTAL SCIENCE

CLASS: 11th          Year 2020

Time: 3 Hours        Maximum Marks: 70

Section- A

Note: Question number 1-8 to be answered in one word or one sentence:

1. Plants which grow on saline Environment are called………………….

2. Lichen is association between…………………… and……….……….

3. The chemical and organic process dead organisms undergo to become coal is……

4. Ozone which act as shield for uv-radiations occurs in which atmospheric layer……

5. Widal test is done for identifying which disease……………….

6. Expand WHO.

7. The maximum population size a particular environment can support is ……………

8. Natality is scientific term for………….

Section- B

Note: - Q. Nos. 9-18 to be answered in 30 words

9. What is Bt cotton?

10. What are the major environmental issues?

11. Enlist few products obtained from animals.

12. Why is World Environment Day Celebrated on 5^th June?

13. Write a short note on Botulism.

14. What is Gene Bank?

15. Define Health as per WHO guidelines.

16. Define malnutrition.

17. Briefly describe Global warming.

18.What do you mean by sustainable development?

Section- C

Note: - Q. Nos. 19 to 27 to be answered in 40 words:

19. Elaborate uses and abuses of nuclear energy.

20. Write a note on biogas and its uses.

21. What are biogeochemical cycles? Name their types.

22. What are the objectives of EVS?

23. Briefly describe three water borne diseases.

24. “Alternative to deforestation”. Explain.

25. Write a note on bio pesticides.

26. What is importance of environmental studies?

27. Give representation of oxygen cycle?

Section- D

Note: - Q. Nos. 28 to 30 to be answered in 75-100 words.

28. What are the impacts of human population explosion on the environment?

Or

     Elaborate various factors effecting human population size.

 

29. What is ecological succession? write a note on types of succession?

Or

      What are ecological pyramids? Draw sketch of pyramid of number and pyramid of biomass.

 

30. What is adaptation? Give an account of long-term adaptation with suitable examples.

Or

       What are interspecific interactions? Elaborate positive interactions with examples.