LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

     B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECH.

DE 16

SIXTH SEMESTER – APRIL 2008

AZ 6603 – ENVIRONMENT MGT & ECOL. METHODS

 

 

 

Date : 16/04/2008             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

SECTION –A

Answer ALL                                                                                                  (10×2=20)

 

1. What is an ecological pyramid?
2. Give any two effects of radiation.
3. What is biogas?
4. List any 2 uses of nuclear energy.
5. Define global warming.
6. What is acid rain?
7. Define sampling.
8. List the uses of dry sieving.
9. What are quadrants used for?
10. Define emigration.

 

SECTION – B

Answer any FOUR:                                                                                      (4×10=40)

 

11. Give an account on terrestrial ecosystem.
12. What are fossil fuels? Add a note on its uses and Management.
13. Explain green house effect.
14. Describe the different types of sampling with examples.
15. How are visual traps set up and used for observation?
16. Write a note on the causes, effects and control of noise pollution.

 

SECTION – C

Answer any TWO :                                                                                       (2×20=40)

 

17. Discuss the human impact on the natural environment.
18. Explain the adverse effects of insecticides & pesticides.
19. Enumerate the causes, effects and control of water pollution. Bring out the positive and negative interactions between populations.

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