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Environmental Science

Environmental Science
Air is composed of gases, water vapours and

rainfall
dust particles
light
snowfall

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Environmental Science
Symbiosis is shown by

E.coli
Monotropa
Cuscuta
Rafflesia

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Environmental Science
Warming in the stratosphere is mainly caused by:

Absorption of ultraviolet radiation by ozone
Release of latent heat energy during condensation
Chemical reactions between ozone and chlorofluorocarbons
Frictional heating caused by meteorites

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Environmental Science
The most abundant gases in the earth's atmosphere by volume are:

Oxygen and ozone
Oxygen and helium
Nitrogen and oxygen
Carbon dioxide and nitrogen
Oxygen and water vapor

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Environmental Science
Pollutants that are introduced into the environment by human activity are called as

anthropogenic pollutants
qualitative pollutants
quantitative pollutants
all of these

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Environmental Science
The presence of high coliform counts in water indicates

decreased Biological Oxygen Demand
phosphorus contamination
hydrocrbon contamination
contamination by human wastes

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MORE MCQ ON Environmental Science

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