B.Sc.Ag (TU) Question Paper 2068 – Environmental Science & Agroecology | 3rd SEM

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AgricultureOld Question Paper for B.Sc. Ag. – Final Examination
Subject: Environmental Science and Agroecology
Tribhuvan University (TU)
Institute of Agriculture and Animal Science (IAAS)

Level: B.Sc. Ag 3rd Semester | Year: 2068(2011)
Full Marks: 40 | Pass Marks: 16 | Time: 2 hrs

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

Essay Type Questions: [10]

1. What are the environmental issues? Mention various types and sources of pollutants and also give at least five diseases caused by water microbial pollutants.

Short Questions (Attempt Any ten) [ 10 X 3 = 30]

2. Define agro-ecosystem. Give the biotic components of any agro-system of Nepal.
3. Give only the definition of the environment, deforestation, urbanization, garbage, rubbish and population.
4. What is greenhouse effect? Give the various sources of green house gases. What can be the effects of the global warming?
5. What is entrophication? What are the methods to stop entrophication?
6. Define food chain and food web. Give a list of various food chains which exist in nature.
7. Mention the various conservation strategies for biological and physical stability in Nepal.
8. Give short notes on any three of the following:

a. Shifting cultivation
b. E.IA.
c. Water balance
d. Ecological Pyramids
e. Agro-ecology

9. Briefly describe the interaction of crops with weeds and pathogens.
10. Mention briefly the conservation strategies used in Nepal for environmental management.
11. What do you mean by climate change? Discuss its impact on agriculture.
12. Give a list of requirements essential for sustainable agriculture and mention a list having least fifteen weeds of any crop fields of Nepal.

Posted By : MeroSpark | Comment RSS | Category : B.Sc. Ag, Bachelor Level, Tribhuvan University
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