Shanmugha Arts Science Technology and Research Academy (SASTRA) University 2008 B.Tech Electronics and Communications Engineering ENVIRONMENTAL STUDIES( ) - Question Paper

SASTRA UNIVERSITY
SUBJECT NAME ENVIRONMENTAL STUDIES
examination kind NOV 2008
PART-A
ans all the ques.. 20x2=40M
01. Why is environmental awareness necessary?
02. Enlist impacts of deforestation.
03. Give the different sources of fresh water.
04. Enlist the different uses of minerals.
05. Brief the effects of modern agriculture.
06. What is meant by ecology.
07. Distinguish biotic and abiotic factors.
08. What is meant by genetic diversity?
09. Define mutation.
10. What is meant by food chain of an ecosystem.?
11. Define the term air pollution.
12. What is meant by an aerosol?
13. Explain the term BOD?
14. Define noise pollution.
15. Distinguish potable water and contaminated water.
16. Enlist the impacts of thermal pollution.
17. What is the purpose of Ritcher Scale.?
18. What is decibel?
19. Give the significance of rain water harvesting.
20. Enlist issues of population growth.
PART-B
ans all the ques.. 4x15=60M
21. Discuss the benefits and over exploitation of forests.
(OR)
22. Explain the advantages and disadvantages of dams or reservoirs.
23. Discuss the measures to conserve bio diversity.
(OR)
24. Explain the nitrogen cycle and role of a technocrat for sustainable maintenance of it.
(OR)
25. Explain the causes and impacts of air pollution.
(OR)
26. Explain how to achieve sustainable development of nation.
27. Discuss different urban energy issues.
(OR)
28. What is meant by global warming? discuss its effects on environment.
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Earning:   Approval pending.