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Environmental Science

Environmental Science
Suppose two unsaturated air masses mix horizontally. The resulting mixture cannot possibly be saturated.

1

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Environmental Science
The most abundant gas in the stratosphere is:

Ozone (O3)
Carbon dioxide (CO2)
Nitrogen (N2)
Oxygen (O2)
Chlorofluorocarbons (CFCs)

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Environmental Science
An ideal shelter for housing a temperature-measurement instrument should be:

In the shade
Black
Both black and in the shade
White
Both white and in the shade

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Environmental Science
The heating of earth's atmosphere due to trapped radiation is known as

Global warming
Thermal effect
Green House effect
Glass-House effect

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Environmental Science
An example of nitrogen fixing bacteria in the soil

Nostoc
Nitrobacter
Azotobacter
Rhizobium

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Environmental Science
High biological oxygen demand indicates:

intense level of microbial pollution
all of these
absence of microbial pollution
moderate microbial pollution

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