Tuesday, December 15, 2015

Vardhman Mahaveer Open University, question paper december 2010 Understanding the Environment

Vardhman Mahaveer Open University, question paper december 2010
Papers (A) (December) 2010
(403)
A
PGDESD-01
P.G.D.E.S.D. EXAMINATION,
December, 2010
UNDERSTANDING THE ENVIRONMENT
Paper-PGDESD-01
(Understanding the Environment)
Time allowed : Three hours
Maximum marks : 100
Part-A
Attempt all questions of this Part.
1. Write a note on a balanced ecosystem of a forest. 20
Or
Describe the process of succession. Why are pioneer
species important in the process ? 20
2. Define the environment and explain the difference between
external and internal environment. 20
Or
Name the various radioactive process that contributes to
the energy balance on earth. 20
3. How are winds formed ? What is their role in the
distribution of heat in the atmosphere ? 20
Or
Describe the structure and formation of the coral
reefs. 20
Part-B
Attempt any five questions.
4. What is an ecosystem ? 8
5. Describe the green house effect. 8
6. What is nitrogen cycle ? 8
7. Describe the characteristic features of a terrestrial
community. 8
8. How are winds formed ? 8
9. Explain the following :
(i) Species diversity
(ii) Stratification
8
10. Write a short note on "global warming". 8

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