LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECH.
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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)
- What is an ecological pyramid?
- Give any two effects of radiation.
- What is biogas?
- List any 2 uses of nuclear energy.
- Define global warming.
- What is acid rain?
- Define sampling.
- List the uses of dry sieving.
- What are quadrants used for?
- Define emigration.
SECTION – B
Answer any FOUR: (4×10=40)
- Give an account on terrestrial ecosystem.
- What are fossil fuels? Add a note on its uses and Management.
- Explain green house effect.
- Describe the different types of sampling with examples.
- How are visual traps set up and used for observation?
- Write a note on the causes, effects and control of noise pollution.
SECTION – C
Answer any TWO : (2×20=40)
- Discuss the human impact on the natural environment.
- Explain the adverse effects of insecticides & pesticides.
- Enumerate the causes, effects and control of water pollution. Bring out the positive and negative interactions between populations.
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