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Environmental Science

Environmental Science
Which of the following is considered a variable gas in the earth's atmosphere?

Water vapor
Oxygen
Nitrogen
Argon

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Environmental Science
On a clear, calm, night, the ground and air above cool mainly by this process:

Radiation
Evaporation
Convection
Reflection
Conduction

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

surface creep
saltation
landslide
suspension

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Environmental Science
Low level ozone is referred to as __________ ozone.

ionosperic
tropospheric
exospheric
stratospheric

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Environmental Science
_________ mixed with diesel reduces carbon monoxide emissions up to 50%.

Phenol
Ethanol
Methanol
Alcohol

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Environmental Science
Air is composed of gases, water vapours and

light
snowfall
rainfall
dust particles

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