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Saturday, January 25, 2020

AHSEC - Class 11: Environmental Education' 2016


2016
ENVIRONMENTAL EDUCATION
Full Marks – 30
Time – 3 hour
1. Write very short answer of the following questions:                   1x10=10
a)      Name any two manmade environmental problems.
b)      Define the term ‘species’.
c)       Name any two nom metallic minerals.
d)      Name the atmospheric region fastest from the earth surface.
e)      Give example of control source of noise pollution.
f)       State two ways for which decomposers are useful.
g)      Name two toxic gases emitted by industries.
h)      Name the biosphere reserve of Assam which is the home of golden langur.
i)        Which State of North-East India is famous for uranium?
j)        Every year on which date is the International Day for the Preservation of the Ozone Layer observed?
2. Write short answers of the following questions (any five):                       2x5=10

a)      What is an ecological pyramid? Name different types of ecological pyramid.
b)      What is consumptive use of biodiversity?
c)       Write a short note on forest resources of Assam.
d)      Distinguish between a situ conservation and ex situ conservation of biodiversity.
e)      Explain the formation of acid rain.
f)       Describe the causes of soil degradation.
g)      What are greenhouse gases and how do they affect the climate?
h)      What measures will you adopt for energy conservation?
3. Answer any two of the following questions:                                   5x2=10
a)      Describe different segments of environment.
b)      Discuss the major threats to biodiversity.
c)       Describe the man-made sources of air pollution.
d)      Write an account on concept of sustainable development.
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