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Environmental Science

Environmental Science
_________ is an important factor that aggravates the effect of drought.

Floods
Soil Erosion
Deforestation
Acid Rain

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Environmental Science
The formula of growth rate for population in given time is

dN/rN=dt
dN/dt=rN
dt/rN=dN
dt/dN=rN
dt/rN=dt

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Environmental Science
The pollution which does not persistent harm to life supporting system is

Radiation pollution
Noise pollution
All of these
Organochlorine pollution

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Environmental Science
In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent.

Hydrogen, helium
Oxygen, hydrogen
Nitrogen, oxygen
Nitrogen, water vapor
Hydrogen, oxygen

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Environmental Science
World's most problematic aquatic weed is

wolffia
eichornia
trapa
azolla

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Environmental Science
Most harmful environmental pollutants are

human organic wastes
waste animal feed
natural nutrients in excess
non-biodegradable chemicals

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MORE MCQ ON Environmental Science

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