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Environmental Science

Environmental Science
Which of the following provides a measure of the average speed of air molecules?

Temperature
Density
Pressure
Heat

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Environmental Science
_________ is a source of all minerals.

water
air
soil
wildlife

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Environmental Science
If very cold air is brought indoors and warmed with no change in its moisture content, the saturation vapor pressure of this air will______ and the relative humidity of this air will_____ .

Decrease, decrease
Increase, decrease
Decrease, increase
Increase, increase

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Environmental Science
A high Biological Oxygen Demand (BOD) indicates that:

absence of microbial action
water is pure
High level of microbial pollution
Low level of microbial pollution

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Environmental Science
In an aquatic ecosystem, the depth to which light penetrates is called

aphotic
euphotic
photic
nonphotic

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Environmental Science
The pollutant that causes hole in the ozone layer is

nitrousoxide
CFCs
PFCs
SF6

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MORE MCQ ON Environmental Science

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