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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No. :.………………… Name :………………….
Second Semester B.Voc. Degree Examination, June 2016
First Degree Programme under CSS
General Course (for Software Development)
AUSD262: Environmental Studies
Time: 3 Hours Max. Marks: 80
SECTION A
Answer ALL questions in one or two sentences.
1. What do you mean by a community
2. Define the term Ecology.
3. Who are called the decomposers in the ecosystem
4. Give the essence of the 'biogenetic law'
5. Explain the term desertification.
6. What do you mean by biodiversity erosion
7. Explain the term bio leaching.
8. What do you mean by natural resources
9. Write a short note on 'environmental management systems'.
10. What do you understand by global warming
(10 × 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding a paragraph of 50 words.
11. Compare and contrast ecology and ecosystem.
12. Write a short note on the producers and consumers of ecosystem.
13. Differentiate between micro habitat and macro habitat.
14. Expand the terms BOD COD, the tools used for the measuring the extent of sewage pollution.
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15. What is an endangered species
16. What do you understand by vulnerable species
17. Mention any two objectives of Wild life protection Act.
18. Differentiate between Beta diversity and Gama diversity.
19. Explain the term 'acid rain'.
20. What do you understand by rain water harvesting Also give any two merits of water harvesting.
21. Give any four after effects of global warming.
22. Explain the concept of sustainable development.
× 2 16 Marks)
SECTION C
Answer any SIX questions, in a page of 100 words.
23. What are the causes of global warming
24. Write a note on 'rain water harvesting'.
25. What are the merits of Environmental Management System
26. Mention any four impacts of ozone layer depletion.
27. Write notes on i). in situ and ex situ conservation ii). red data book
28. Explain the concept of 'species diversity'.
29. Explain the term Eutrophication. What are the reasons of Eutrophication
30. Write notes on noise pollution and its causes.
31. What are the different subsystems of ecosystem
× 4 24 Marks)
SECTION D
Answer any TWO questions, not exceeding four pages.
32. Explain the structure and functions of forest ecosystem.
33. What is pollution Explain different types of pollution.
34. Explain the concept of biodiversity. Also explain its ecological, economic and scientific values.
35. Write an essay on human threats to biodiversity.
× 15 30 Marks)