Download JNTUA B.Tech 1-2 R15 2019 June 15A01101 Environmental Studies Question Paper

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Code: 15A01101


B.Tech I Year II Semester (R15) Regular & Supplementary Examinations May/June 2019
ENVIRONMENTAL STUDIES
(Common to CE, EEE & CSE)

Time: 3 hours Max. Marks: 70

PART ? A
(Compulsory Question)

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1 Answer the following: (10 X 02 = 20 Marks)
(a) Name the three categories of the living organisms present in the environment.
(b) Mention the per capita availability of forest area in India and in the world.
(c) Distinguish between abiotic and biotic components of ecosystem.
(d) Why are decomposers called micro consumers?
(e) Distinguish urban and industrial wastes with examples.
(f) Define air pollution? Write few causes for air pollution.
(g) How does Ozone layer protect us?
(h) Recall the term watershed management.
(i) What are sexually transmitted diseases? How these affect human life expectancy?
(j) Why is the soil on river bank is nutrient poor?

PART ? B
(Answer all five units, 5 X 10 = 50 Marks)

UNIT ? I

2 Briefly explain the types of biotic components of the environment and also mention their specific
roles in nature.
OR
3 Describe the role of individual in conservation of natural resources.

UNIT ? II

4 Explain the following:
(a) Energy flow in ecosystem.
(b) Salient features of a pond ecosystem.
OR
5 (a) How is diversity at all levels generally conserved?
(b) Give the benefits of biological diversity.

UNIT ? III

6 What are the main causes of water pollution? How can water pollution be controlled?
OR
7 Discuss the ways in which land is degraded. Suggest steps to check land degradation.

UNIT ? IV

8 Explain the major issues and problems related to rehabilitation of displaced people.
OR
9 (a) Enlist main guidelines of the Air Act 1981.
(b) Consumerism and waste generation are interrelated ?comment.

UNIT ? V

10 Briefly discuss about the initiatives undertaken by the Indian government for empowering women.
OR
11 Prepare a detailed field report of the visit of a river site.

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R15
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