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Environmental Science

Environmental Science
Carbon dioxide is a naturally-occurring component of the atmosphere.

1

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Environmental Science
The darkening of the skin due to arsenic poisoning is called

Skin scaling
None of these
Diffuse melanosis
Black syndrome

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

Alcohol
Ethanol
Methanol
Phenol

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Environmental Science
Fog that most often forms as warm rain falls into a cold layer of surface air is called:

Upslope fog
Radiation fog
Advection fog
Evaporation (mixing) fog

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Environmental Science
Which one of the following is the correct percentage of the two green house gases that contribute to the total global warming?

N2O-6%, CO2 -86%
Methane-20%, N2O-18%
CO2-40%,CFCs-30%
CFCs -14%, Methane-20%

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Environmental Science
Where are the days and nights of equal length all year long?

Nowhere
At the Equator
At 66.5o
At 23.5o

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