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MEDIUM
ENGLISH
Agriculture
The last community in a succession is called:
A
Ecosystem
Option A
B
Climatic community
Option B
C
Ecotons
Option C
D
Seral community
Option D
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MEDIUM
ENGLISH
Agriculture
The herb stage in a lithosphere is immediately followed by plants like:
A
Potantilla
Option A
B
Zizyphus
Option B
C
Umbilicaria
Option C
D
Grimmia
Option D
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MEDIUM
ENGLISH
Agriculture
When the vegetation of any region reaches climatic climax, it is:
A
Lithophytic
Option A
B
Xerophytic
Option B
C
Mesophytic
Option C
D
Hydrophytic
Option D
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MEDIUM
ENGLISH
Agriculture
The earliest settlers on barren lands generally are:
A
Diatoms
Option A
B
Ferns
Option B
C
Mosses
Option C
D
Lichens
Option D
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MEDIUM
ENGLISH
Agriculture
With the increase in water pollution, the BOD:
A
Decreases
Option A
B
Increases
Option B
C
Remains the same
Option C
D
Is no measure of pollution
Option D
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MEDIUM
ENGLISH
Agriculture
A very harmful fibrous component causing pollution an inflicting diseases of lungs in human beings:
A
Grease
Option A
B
Asbestos
Option B
C
Eichhornia roots
Option C
D
ABS micelle
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is a biodegradable pollutant?
A
Sewage
Option A
B
Asbestos
Option B
C
Plastic
Option C
D
All of these
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following is not used for disinfection of drinking water?
A
Chlorine
Option A
B
Chloramines
Option B
C
Phenyl
Option C
D
Ozone
Option D
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MEDIUM
ENGLISH
Agriculture
Indiscriminate use of fertilizers have lead to:
A
Air pollution
Option A
B
Soil pollution
Option B
C
Water pollution
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The ground water pollution is due to excess of:
A
DDT is a growth retardant
Option A
B
Pesticides
Option B
C
Minerals
Option C
D
Carbon deposit
Option D
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MEDIUM
ENGLISH
Agriculture
The abbreviation MPN stand for:
A
Most probable number
Option A
B
Millions per night
Option B
C
Millennium of probable number
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
The most harmful component of detergents causing water pollution is:
A
Linear alkyl sulphonate
Option A
B
Sulphates and phosphate
Option B
C
Alkyl benzenes sulphonate
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
When excess of sewage is dumped in the river, its BOD:
A
Increases
Option A
B
Slightly decreases
Option B
C
Remains unchanged
Option C
D
Decreases drastically
Option D
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MEDIUM
ENGLISH
Agriculture
Tajmahal is threatened due to the presence of:
A
Chlorine/NO2
Option A
B
SO2
Option B
C
Oxygen/ozone
Option C
D
Hydrocarbons
Option D
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MEDIUM
ENGLISH
Agriculture
Green-house effect is due to the presence of:
A
Ozone layer in the atmosphere
Option A
B
Infra-red radiations
Option B
C
Moisture in the atmosphere
Option C
D
CO2 in the atmosphere
Option D
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MEDIUM
ENGLISH
Agriculture
It is advised not to have brick kiln near fruit orchard:
A
To save the trees from erosion
Option A
B
To safeguard the fruits from large labour population
Option B
C
To save the trees from poisonous fumes/smoke from the brick chimneys
Option C
D
To protect the orchard from the operation of trucks meant for transporting fruits
Option D
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MEDIUM
ENGLISH
Agriculture
Most severe environmental hazard to mankind is due to:
A
Air pollution
Option A
B
Water pollution
Option B
C
Noise Pollution
Option C
D
Radioactive pollution
Option D
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MEDIUM
ENGLISH
Agriculture
Which of the following gases is regarded as an atmospheric pollutant?
A
O2
Option A
B
O3
Option B
C
SO2
Option C
D
N2
Option D
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MEDIUM
ENGLISH
Agriculture
Minamata diseased was caused due to water pollution by:
A
Lead
Option A
B
Cyanides
Option B
C
Methyl isocyanate
Option C
D
Mercury
Option D
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MEDIUM
ENGLISH
Agriculture
The effect of today’s radioactive fallout will probably be more harmful to children of future generations than to children now living because:
A
Contamination of milk supply is not cumulative
Option A
B
Infants are more susceptible to radiation
Option B
C
Susceptibility to radiation increases with age
Option C
D
Mutated genes are frequently recessive
Option D
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