B.Sc. DEGREE EXAMINATION, NOVEMBER 2017.
Optometry
ENVIRONMENTAL STUDIES
(2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Atmosphere.
2. Green house.
3. Afforestation.
4. Abiotic factors.
5. Renewable energy.
6. Mineral cycling.
7. Biomass.
8. Decomposers.
9. Ethical value.
10. Acid rain.
Sub. Code
26
CP-7933
2
sp4
Part B 5 25)
Answer all questions.
11. What are the causes influence the deforestation?
Explain.
Or
How do you conserve the fresh water? Explain.
12. Give an account on usage of mineral resources
Or
Write the consequences of unscientific construction
practice.
13. Briefly explain the food chain in various ecosystem.
Or
Write a note on indirect value of biological
resources.
14. What are the major threats to biodiversity? Explain.
Or
Give an note on endangered species of India.
15. Write the methods of control and prevention of
water pollution.
Or
Write an essay on noise pollution.
CP-7933
3
sp4
Part C 10 30)
Answer all questions.
16. Explain the importance of public awareness on
environment.
Or
Describe the role of an individual in conservation of
natural resources.
17. Write a detailed note on the structure and functions
of Pond ecosystem.
Or
Discuss India as a mega Biodiversity.
18. Give an account on nuclear hazards on human and
environment.
Or
What are the major causes for the marine pollution?
Explain in detail.
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