Anna University GE6351 Environmental Science and Engineering Nov Dec 2021 Question Paper

Anna University Old Question Paper

Question Paper Code : 70649

Reg. No. : 

B.E./B.Tech. DEGREE EXAMINATIONS, NOVEMBER/DECEMBER 2021. 

Third/Fourth/Fifth/Sixth/Seventh/Eighth/Ninth Semester 

Civil Engineering 

GE 6351 — ENVIRONMENTAL SCIENCE AND ENGINEERING 

(Common to all branches Expect Marine Engineering) 

 (Regulations 2013) 

Time : Three hours Maximum : 100 marks 

Answer ALL questions. 

PART A — (10 x 2 = 20 marks) 

1. What are food chains? 

2. Define biodiversity. 

3. Define noise pollution. 

4. What is the role of individual in pollution prevention? 

5. What is Biogas? Mention its uses. 

6. Define Sustainable lifestyle. 

7. Explain the term sustainability briefly. 

8. State any two biomedical waste handling rules. 

9. What is meant by value education? 

10. Mention any two welfare programs for children adopted in India. 

PART B — (5 x 13 = 65 marks) 

11. (a) (i) Describe the function of an ecosystem using energy flow and material cycling. (7) 

 (ii) Define In-situ and Ex-situ conservation of biodiversity and explain.  (6) 

Or 

(b) (i) Explain the stages in ecological succession using appropriate terminology. (7) 

 (ii) Justify India to be a mega biodiversity nation with the required data. (6) 

12. (a) (i) Explain the causes, effects and control measure of air pollution. (8) 

 (ii) Explain the control and prevention measures of municipal solid – wastes. (5) 

Or 

(b) (i) Write briefly about the hazards caused by the nuclear wastes. (8) 

 (ii) Explain in detail the role of an individual in pollution prevention. (5) 

13. (a) (i) What are the reasons of deforestation? (6) 

 (ii) Hot is biogas generated? (7) 

Or 

(b) Explain in detail the effect of modern agriculture which includes both beneficial and adverse effects. 

14. (a) (i) Discuss the recent approaches to achieve sustainable development.(9) 

 (ii) What is green chemistry and what are its principles? (4) 

Or 

(b) (i) Discuss the various applications of green chemistry for achieving sustainable development. (8) 

 (ii) Explain salient features of Water Act. (5) 

15. (a) (i) What is AIDS? What are the sources and mode of transmission of HIV infection? (8) 

 (ii) Write a note on the following : (5) 

 (1) Women and child welfare in India 

 (2) Human rights. 

Or 

(b) (i) What are the objectives and elements of value education? How can  the same be achieved? (8) 

 (ii) Population explosion affects the environment seriously. Discuss. (5) 

PART C — (1 x 15 = 15 marks) 

16. (a) What do you know about the latest announcements by the Tamil Nadu government regarding ‘Beat Plastic Pollution’? 

Or 

(b) Does today’s media world contribute to the sustainability of environment. Comment. 

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