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Environmental Science

Environmental Science
Ultraviolet radiation which is not lethal but harm to the organism is

0.32-0.4
0.4-0.5
0.28-0.32
0.1 to 0.28

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Environmental Science
The pollutant that causes hole in the ozone layer is

SF6
PFCs
CFCs
nitrousoxide

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Environmental Science
The unit of measurement of intensity of sound is in _________

Lux
Candela
Decibels
Parsec

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Environmental Science
When the air temperature is below freezing, the saturation vapour pressure over water is .

Equal to zero
Less than the saturation vapour pressure over ice
Greater than the saturation vapour pressure over ice
Equal to the saturation vapour pressure over ice

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Environmental Science
________ is the natural phenomenon, caused by an unlimited and unprecedented rainfall.

Cyclone
Heightening
Floods
Soil erosion

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Environmental Science
World's most problematic aquatic weed is

wolffia
azolla
eichornia
trapa

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