B.Tech-B.Tech Aerospace Engineering 4th Sem BAS-021 : ENVIRONMENTAL SCIENCE(Indira Gandhi National Open University (IGNOU), New Delhi-2013)

                       B.Tech. (AEROSPACE ENGINEERING)
                                          (BTAE)
                               Term-End Examination
                                      June, 2013
                    BAS-021 : ENVIRONMENTAL SCIENCE

Time : 3 hours                                                 Maximum Marks : 70

Note :

(i) Answer any seven (7) questions.

(ii) All questions carry equal marks.

 

1. Write about Environmental Education with reference to the following :

(a) Definition and scope 5

(b) Importance 5

2. (a) Explain the difference between renewable and non-renewable sources of energy. 5

(b) What do you understand by Geothermal  energy ?  5

3. (a) What is an ecosystem ? What are the structural and functional aspects of ecosystem ? 5

(b) Describe producers, consumers, decomposers and energy flow in ecosystem.  5

4. (a) Explain in brief Grassland ecosystem. 5

(b) Explain in brief Desert Ecosystem. 5

5. Explain any five (5) values of Biodiversity. 10

6. What is Marine Pollution ? Discuss the causes and remedies of Marine Pollution. 10

 

 

7. (a) What do you understand by Air Pollution ?  4 

 

(b) What are the causes, effects and control measures of Air Pollution ?   6


8. Write short notes on :

(a) Consumerism and waste products  4

(b) 3 R Principle   3

(c) Wasteland reclaimation  3

9. Write short notes on :

(a) Population Explosion  5

(b) Environment Impact Assessment   5

 

10. Explain in brief any five (5) elements of mitigation strategy in disaster management.  10 

Earning:  ₹ 7.10/-