Download AKTU B-Tech 1st Sem 2015-2016 EAS 105 Environment Ecology Question Paper

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NAS-105

(Following Paper ID and Roll No. to be filled in your Answer Book)

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Paper ID : 199105

Roll No.

B. Tech.

(SEM. I) THEORY EXAMINATION, 2015-16

ENVIRONMENT & ECOLOGY

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[Time:3 hours]

[Maximum Marks: 100]

Section - A

1. Attempt all parts. All parts carry equal marks. Write answer of each part in short. (2x10=20)
   1. What do you understand by the term "Biotic and Abiotic" with examples ?
   2. Explain the term "Pollutant". Give examples.

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   3. What is Bio-accumulation?
   4. Define Food Chain with example.
   5. Define BAP and its source.
   6. What is Urban-Sprawling?
   7. Explain flood and its main cause.

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   8. Define ecological pyramids and their types. Explain food web with appropriate examples.
   9. What are the different ways to restore the damage of ecosystem? Explain In-situ approach for conservation of ecosystem.
   10. Explain different sources of water pollution. How water pollution affect the marine life?

Section - B

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Note: Attempt any five questions from this section.

3. What are the diffferent effects of air pollution on human, plants and materials?

4. Define Urban-Sprawling and positive and negative effects of urbanization.

5. Draw and explain Nitrogen Cycle. Explain Nitrification and de-nitrification process.

6. Explain the need of education for controlling the pollution. What are bio-indicator and their types?

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7. Explain: (a) Sources of solid waste (b) Effect of solid waste

8. Write notes on the following: (a) Noise pollution and its sources. (b) Role of legislation in pollution control.

Section - C

Note: Attempt any two questions from this section.

11. (a) Define ecosystem, its structure concept and function with examples.
    

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    (b) Explain the principle and working of solar cell with diagram.
12. Explain:
    (a) Tuberculosis
    (b) Wet-scrubber.

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