AHSEC| CLASS 11| ENVIRONMENTAL EDUCATION| QUESTION PAPER - 2021| H.S.1ST YEAR
2021
ENVIRONMENTAL EDUCATION
Full Marks: 40
Pass Marks: 12
Time: 2 hours
The figures in the margin indicate full marks
for the questions
1. (a) Answer in one or two words 1x5=5
(i) Define
biodiversity.
(ii) What
is the name of the solid mantle of the earth?
(iii)
Which day is observed as the World Environment Day?
(iv) Give
the name of a Biosphere Reserve of Assam.
(v) Write
the full form of NIDM.
(b) Fill
in the blanks 1x3=3
(i) The
First Decade of Action for Road Safety' is ________.
(ii) Tiger
is _______level consumer of ecosystem.
(iii) Cholera
is a ________disease.
2. Write short accounts of (any five): 2x5=10
(a) Food
chain
(b) Ex
situ conservation
(c)
Sources of sound pollution
(d) Causes
of threats to biodiversity
(e) The
Wildlife (Protection) Act, 1972
(f) Acid
rain
(g)
Greenhouse effect
3. Define and distinguish (any four): (2+1)x4=12
(a)
Lithosphere and Hydrosphere
(b) Producer
and Consumer
(c) Renewable
and Non-renewable resources
(d) Pollutant
and Pollution
(e) Road marking
and Zebra crossing
(f) Biodegradable
and Non-biodegradable wastes
4. Answer the following questions (any two): 5x2=10
(a) Describe
the various air pollutants.
(b) What do
you mean by global warming? Mention two consequences of global warming.
(c) Write the
importance of health and hygiene.
(d) Write the
major causes of deforestation in N-E India.
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