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Environmental Science

Environmental Science
Which of the following is the major cause of pollution?

fungi
hydrocarbon gases
plants
man

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Environmental Science
If all the water vapour in the atmosphere were to condense and fall to the ground, the globe would be covered with about ______ of water.

1 foot
1 millimeter
1 meter
1 inch

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Environmental Science
Nitrogen gas returns to the atmosphere by the action of

Denitrifying bacteria
Nitrifying bacteria
Nitrate fertilizers
Nitrogen fixing bacteria

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Environmental Science
The first global environmental protection treaty "The Montreal Protocol" was signed on September 26 in

1981
1990
1985
1987

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Environmental Science
Many freshwater animals cannot live for long in sea water and vice versa mainly because of the

Osmotic problems
Change in the levels of thermal tolerance
Variations in light intensity
Change in N levels
Spectral quality of solar radiation

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Environmental Science
A small particle of soil blown by dust is known as

saltation
suspension
surface creep
landslide

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