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MEDIUM
ENGLISH
Agriculture
The percentage of run off water reaching the ocean and evaporation into atmosphere is respectively:
A
27 & 73
Option A
B
73 & 27
Option B
C
37 & 63
Option C
D
63 & 37
Option D
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MEDIUM
ENGLISH
Agriculture
The atmospheric pollution is caused by:
A
O3
Option A
B
CO
Option B
C
CO2
Option C
D
N2
Option D
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MEDIUM
ENGLISH
Agriculture
This acts as bioindicator of air pollution:
A
Alga
Option A
B
Lichen
Option B
C
Pinus
Option C
D
Mustard
Option D
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MEDIUM
ENGLISH
Agriculture
Water pollution is caused by:
A
Decay of bodies of aquatic organisms
Option A
B
Rain
Option B
C
Growth of phytoplankton
Option C
D
Industrial effluents
Option D
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MEDIUM
ENGLISH
Agriculture
Some reliable indicators of air pollutants (SO2 and noxious gases) are:
A
Ferns and Cycas
Option A
B
Green algae and aquatic liverworts
Option B
C
Lichens and mosses
Option C
D
Neem’ tree and Eichhornia
Option D
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MEDIUM
ENGLISH
Agriculture
The component of a living cell affected by the pollutant SO2 is:
A
Nucleus
Option A
B
All cell membrane system
Option B
C
Cell wall
Option C
D
Plasmodesmata
Option D
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MEDIUM
ENGLISH
Agriculture
Checking of re-radiating heat by atmospheric dust water vapour, ozone, CO2 is known as:
A
Green house effect
Option A
B
Radioactive effect
Option B
C
Ozone layer effect
Option C
D
Solar effect
Option D
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MEDIUM
ENGLISH
Agriculture
Heating of earth surface is due to:
A
Air pollution
Option A
B
Water pollution
Option B
C
Soil pollution
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
Mercury pollution causes a disease:
A
Methaelo binemia
Option A
B
Minamata
Option B
C
Foolish disease
Option C
D
Hepatitis
Option D
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MEDIUM
ENGLISH
Agriculture
The part of earth in which life exists is known as:
A
Lithosphere
Option A
B
Biosphere
Option B
C
Atmosphere
Option C
D
Hydrosphere
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following enhances BOD of water?
A
Algae
Option A
B
Sand
Option B
C
Moss
Option C
D
Sugar mill effluents
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is likely to have the highest level of DDT deposition in its body?
A
Eel
Option A
B
Crab
Option B
C
Sea gull
Option C
D
Phytoplanktons
Option D
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MEDIUM
ENGLISH
Agriculture
If water pollution continues at its present rate, it will eventually:
A
Make oxygen molecules unavailable to aquatic life
Option A
B
Make nitrates unavailable to aquatic life
Option B
C
Prevent precipitation
Option C
D
Stop the water cycle
Option D
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MEDIUM
ENGLISH
Agriculture
Air pollution is not caused by:
A
Thermal power plant
Option A
B
Diesel engine
Option B
C
Hydroelectric power station
Option C
D
Pollen grain
Option D
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MEDIUM
ENGLISH
Agriculture
Foul smell in the water tanks, ponds etc, is due to:
A
Anaerobiosis
Option A
B
Aerobiosis
Option B
C
Biological magnification
Option C
D
Psammophytes
Option D
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MEDIUM
ENGLISH
Agriculture
Biological treatment of water pollution is done with the help of:
A
Lichens
Option A
B
Fungi
Option B
C
Phytoplanktons
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The effect of pollution is first and most marked on:
A
Natural flora of a place
Option A
B
Natural balance of our environment
Option B
C
Natural geo-chemical cycles
Option C
D
All the above three
Option D
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MEDIUM
ENGLISH
Agriculture
Hydrosphere starts from:
A
Water factor
Option A
B
Sand
Option B
C
Mud
Option C
D
Desert
Option D
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MEDIUM
ENGLISH
Agriculture
Last stable community in succession dependent on climate is:
A
Seral community
Option A
B
Climax community
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
A place was rocky and barren but now there is a green forest; the sequence of origin is:
A
Lichen, mos, herbs, shrubs
Option A
B
Moss, lichen, herbs, shrubs
Option B
C
Lichen, moss, shrubs, herbs
Option C
D
Shrubs, herbs, moss, lichen
Option D
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