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MEDIUM
ENGLISH
Agriculture
Ozone depletion in stratosphere shall result in:
A
Forest fires
Option A
B
Green house effect
Option B
C
Global warming
Option C
D
Increased incidence of skin cancer
Option D
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MEDIUM
ENGLISH
Agriculture
Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristics in:
A
Petiole but not in lamina
Option A
B
Only mid rib of lamina
Option B
C
Leaf tip and leaf margin
Option C
D
Stems tips only
Option D
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MEDIUM
ENGLISH
Agriculture
DDT is a:
A
Biodegradable pollutant
Option A
B
Green house gas
Option B
C
Non-degradable pollutant
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Spraying of DDT on crop produces pollution of:
A
Air only
Option A
B
Air and soil only
Option B
C
Air, soil and water
Option C
D
Air and water only
Option D
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MEDIUM
ENGLISH
Agriculture
The maximum biological magnification of DDT through food web is seen in:
A
Algae
Option A
B
Bacteria
Option B
C
Higher plants
Option C
D
Man
Option D
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MEDIUM
ENGLISH
Agriculture
What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer?
A
Sulphur di-oxide
Option A
B
Carbon di-oxide
Option B
C
Nitrogen oxides and fluoro-carbons
Option C
D
Carbon monoxide
Option D
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MEDIUM
ENGLISH
Agriculture
Identify the correctly matched pair:
A
Montreal Protocol – Global warming
Option A
B
Ramsar Convention – Ground water pollution
Option B
C
Kyoto Protocol – Climatic change
Option C
D
Basal Convention – Biodiversity Conservation
Option D
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MEDIUM
ENGLISH
Agriculture
The presence of O3 in atmosphere of earth:
A
Has been responsible for increasing the average global temperature in recent
Option A
B
Is advantageous since it supplies O2 for people travelling in jets
Option B
C
Hinders higher rate of photosynthesis
Option C
D
Helps in checking the penetration of ultra violet rays to earth
Option D
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MEDIUM
ENGLISH
Agriculture
Today, concentration of green house gases is high because of:
A
Use of refrigerator
Option A
B
Increased combustion of oil and coal
Option B
C
Deforestation
Option C
D
All the above
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is not an important atmospheric pollutant?
A
CO
Option A
B
SO2
Option B
C
CO2
Option C
D
Hydrocarbons
Option D
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MEDIUM
ENGLISH
Agriculture
Gases commonly referred to as ‘green house gases’ are:
A
CH4, N2, CO2 and NH3
Option A
B
CO2, O2, NO2 and NH3
Option B
C
Chloro-fluoro-carbons, CO2, NH3 and N2
Option C
D
CO2, chloro-fluoro-carbons, CH4 and NO2
Option D
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MEDIUM
ENGLISH
Agriculture
Which one of the following insecticides is the most persistent in soil?
A
Malathion
Option A
B
Aldrin
Option B
C
Gamma BHC
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Ozone layer in stratosphere is effected by:
A
Excess CO2
Option A
B
Excess CO
Option B
C
Chloro-fluoro-carbon
Option C
D
Low rainfall
Option D
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MEDIUM
ENGLISH
Agriculture
Acid rain is mainly caused by increased concentration (in atmosphere) of:
A
Ozone and dust
Option A
B
NH3 and SO3
Option B
C
CO and SO3
Option C
D
NO2 and SO2
Option D
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MEDIUM
ENGLISH
Agriculture
CO is harmful to human being because:
A
It decreases CO2 concentration
Option A
B
It competes O2 to combine with haemoglobin
Option B
C
It is carcinogenic
Option C
D
It depletes O3 layer
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following, when inhaled dissolves in the blood haemoglobin rapidly then O2?
A
SO2
Option A
B
CO
Option B
C
N2O
Option C
D
O3
Option D
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MEDIUM
ENGLISH
Agriculture
The cause of water pollution?
A
Smoke
Option A
B
2, 4-D and pesticides
Option B
C
Automobile exhaust
Option C
D
Aeroplanes
Option D
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MEDIUM
ENGLISH
Agriculture
Photochemical smog is related to the pollution of:
A
Soil
Option A
B
Water
Option B
C
Noise
Option C
D
Air
Option D
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MEDIUM
ENGLISH
Agriculture
Sewage water can be purified for recycling with the action of:
A
Aquatic plants
Option A
B
Penicillin
Option B
C
Micro-organisms
Option C
D
Fishes
Option D
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MEDIUM
ENGLISH
Agriculture
Air pollution is maximum caused by:
A
Sewage and industrial effluents
Option A
B
Household detergents and pesticides
Option B
C
Automobile exhausts and chemicals from industry
Option C
D
Sewage and pesticides
Option D
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