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Environmental Science

Environmental Science
A human population is small, there is a greater chance of :

genetic drift
gene flow
natural selection
mutation

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Environmental Science
Freshwater protozoans react to a/an __________ environment by removing water through _______

hypotonic, a contractile vacuole
hypertonic, a contractile vacuole
hypotonic, turgor pressure
isotonic, a contractile vacuole

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Environmental Science
Bio gas generation is mainly based on the principle of

Sedimentation
Biodegradation
Purification
Fermentation

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Environmental Science
The crucial species that determine the ability of large number of other species is termed as _________ species.

Important
Crucial
Keystone
Significant

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Environmental Science
CFCs are used as

insulators
aerosol propellants
refrigerants
All listed here

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Environmental Science
The amount of solar radiation reaching the surface of the earth is called

solvents
Solar flux
reflected light
minerals

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MORE MCQ ON Environmental Science

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