Kuvempu University 2009 M.Sc Zoology Environmental pollution and ecotoxicology - Question Paper

ENVIRONMENTAL POLLUTION AND ECOTOXICOLOGY

DPB- 520

Final Year M.Sc. Degree Examination Aug/Sept 2009 Directorate of Distance Education (Freshers)

ZOOLOGY

Paper-VI: Environmental Pollution and Ecotoxicology

Time : 3 Hours    Max. Marks: 85

Note : 1. All questions carry equal marks.

2.    Answer any TWO questions from Part A, TWO questions from Part B and Part C Is compulsory.

3.    Illustrate the answers wherever necessary.

PART-A    2x15=30

1.    Write an account of 'sources and pollutants of air pollution¹.

2.    Describe the steps involved in wastewater treatment.

3.    Explain pollution and loss of biodiversity.

4.    Give an account of 'basic element environment impact assessment methods'.

PART-B    2x15=30

5.    Critically comment on 'pesticides and their mode of action'.

6.    Explain residual effects of pesticides in animals.

7.    Give a brief account on tolerance limits and development of resistance to xenobiotics.

8.    Discuss the toxins of animal origin with their effects.

PART-C    5x5=25

9.    Write short notes on any FIVE of the following.

a) Global Warming. b) Eutrophication c) Bhopal Tragedy d) Hydrological cycle. e) Organophosphate toxicity 0 Loss of biodiversity 9) Dose response relationships

Attachment: kuvempu-university-2009-m-sc-zoology-2966-1.bmp

Earning:   Approval pending.