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MEDIUM
ENGLISH
Agriculture
The enrichment of water by nutrients is:
A
Mineralization
Option A
B
Oligotrophication
Option B
C
Eutrophication
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
Maximum greenhouse gas is released by which of the following country?
A
USA/Korea
Option A
B
Pakistan
Option B
C
France
Option C
D
England
Option D
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MEDIUM
ENGLISH
Agriculture
The use DDT is banned now a days because it is:
A
Very costly
Option A
B
Not available
Option B
C
Inflammable
Option C
D
Not degraded easily
Option D
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MEDIUM
ENGLISH
Agriculture
Ozone layer of upper atmosphere is being destroyed by:
A
Sulphur di-oxide
Option A
B
Carbon di-oxide
Option B
C
Chloro-fluoro-carbon
Option C
D
Smog
Option D
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MEDIUM
ENGLISH
Agriculture
Most hazardous metal pollutant of automobile exhaust is:
A
Hg
Option A
B
Cd
Option B
C
Pb
Option C
D
Cu
Option D
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MEDIUM
ENGLISH
Agriculture
The result of ozone hole is:
A
Global warming
Option A
B
Acid rain
Option B
C
Greenhouse effect
Option C
D
The UV radiations reach the earth
Option D
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MEDIUM
ENGLISH
Agriculture
What is the intensity of sound in normal conversation?
A
10-20 dB
Option A
B
40-60 dB
Option B
C
90-12 dB
Option C
D
120-150 dB
Option D
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MEDIUM
ENGLISH
Agriculture
The high amount of E. coli in water in the indicator of:
A
Hardness of water
Option A
B
Industrial pollution
Option B
C
Sewage pollution
Option C
D
Presence of chlorine in water
Option D
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MEDIUM
ENGLISH
Agriculture
Greenhouse effect is due to:
A
CO
Option A
B
CO2
Option B
C
NO2
Option C
D
PO4
Option D
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MEDIUM
ENGLISH
Agriculture
Water pollution is caused by:
A
Ammonia
Option A
B
Phytoplankton
Option B
C
Industrial effluents
Option C
D
Smoke
Option D
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MEDIUM
ENGLISH
Agriculture
Examples of regional pollution are:
A
Acid rain
Option A
B
Smog
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Greenhouse effect is:
A
Caused by CO2 only
Option A
B
Caused by CH4, SO2, NO2 gases
Option B
C
Caused by those gases which absorb the infra-red light reflecting from earth
Option C
D
Caused by combination of many gases
Option D
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MEDIUM
ENGLISH
Agriculture
Lead (Pb) is mainly considered:
A
Soil pollutant
Option A
B
Water pollutant
Option B
C
Air pollutant
Option C
D
Noise pollutant
Option D
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MEDIUM
ENGLISH
Agriculture
BOD is connected with:
A
Organic matter
Option A
B
Microbes
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Which is a degradable pollutant?
A
DDT
Option A
B
Aluminum foil
Option B
C
Domestic wastes
Option C
D
Mercury slats
Option D
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MEDIUM
ENGLISH
Agriculture
BOD is the amount of oxygen:
A
Present in water
Option A
B
Utilized by organisms in water
Option B
C
Utilized by micro-organisms for decomposition
Option C
D
Demanded by the producers for the production of food
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is most poisonous?
A
CO
Option A
B
CO2
Option B
C
C
Option C
D
SO2
Option D
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MEDIUM
ENGLISH
Agriculture
Ozone hole is refers to as:
A
Hole in ozone layer
Option A
B
Decrease in the ozone layer in troposphere
Option B
C
Decrease in thickness of ozone layer in stratosphere
Option C
D
Increase in the thickness of ozone layer in troposphere
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following does not cause pollution?
A
CO2
Option A
B
SO2
Option B
C
H2
Option C
D
CO
Option D
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MEDIUM
ENGLISH
Agriculture
In a river, if its BOD is high, then:
A
River is polluted
Option A
B
River is not polluted
Option B
C
River is day
Option C
D
None of these
Option D
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