Thapar University 2006 M.Tech Environmental Engineering Environmental Studies - Question Paper

1

WRITE SHORT NOTES ON

A

Biochemical oxygen demand.

(2)

B

Carrying capacity and biotic potential

(2)

C

Biological and cultural needs of human beings.

(2)

D

Minamata Disease

<2)

"\

H

Vermiculture.

(2)

F

Point and Non-point sources of air (OR) water pollution.

C)

2

A

State the importance of water cycle

(3)

B

What are biogeochemical cycles and their basic types⁰

(3)

C

Discuss schematically the path of nitrogen molecule in nitrogen cycle from atmosphere to land and back again

(2)

3

A

Differentiate between primary succession and secondary succession with suitable examples

(3)

B

How does NPP differs from GPP How does ratio of productivity (P) and respiration (R) changes with succession?

(3)

C

Distinguish between .mazing food chain and detritus food chain.

[2)

4

A

What are ecological pyramids? Discuss pyramid of number and pyramid of biomass in any ecosystem.

(3)

B

Differentiate between food chain and food web. Why is concept of food web ecologically more \ table than the concept of a simple food chain.

(3)

C

How is flow of enerev linked to the law's of thermodynamics.

<2>

5

A

Discuss the strategies to be adopted for water management in irrigation and niuncipal sectors

(3)

B

What are the three systems that provide food resources for human consumption⁹ Name three major crops that provide major component of world's food.

(3)

C

List advantages of modern agricultural techniques.

(3)

6

A

The ecological uses of forests surpass commercial uses. Justify.

(3)

B

Categorize the energy resources based on (a) commercial and non-commercial, and (b) conventional and non-conventionai resources

(3)

C

Mention the risks involved in considering nuclear power as a major energy resource for future

(2)

7

A

What are the various chemical reactions involved in ozone depletion⁷

(3)

B

Discuss the various methods used for the disposal of municipal solid waste.

(3)

C

What are the consequences of noise pollution?

(2)