Shanmugha Arts Science Technology and Research Academy (SASTRA) University 2009 B.Tech Electronics and Communications Engineering ENVIRONMENTAL STUDIES(I-Term ) - Question Paper

SASTRA UNIVERSITY
Subject Name ENVIRONMENTAL STUDIES
examination TYPE I-MID SEMESTER JAN -2009
PART-A
ans all the ques.. 10x2=20M.
01. Define NTFP and provide 2 examples.
02. How are local people benefited through JFM?
03. What is the difference ranging from precipitation and percolation?
04. How does watershed management enhance water resources?
05. How does a dam affect the river ecology?
06. What is the difference ranging from open cast &shaft mines , and which is more destructive to the ecosystem?
07. List 4 non-metallic minerals and their uses.
08. List the requirements for sustainable agriculture.
09. Explain the term IPM and its significance in agriculture.
10. What is a trawler and how does it damage the oceans?
PART-B
ans any 3 ques.. 3x10=30M
11. List the key functions of a forest and explain the causes of deforestation.
12. List and explain the environmental damage caused at every stage of metal production(mining to usage).
13. Discuss how recycling of sewage can decrease the water demand for irrigation and industries and also benefit the ecosystem.
14. List the key contributions of green revolution to agriculture and also explain its negative impacts.
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Earning:   Approval pending.