Module 2 Vocabulary Flashcards

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1
Q

Humidity

A

The moisture content of the air

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2
Q

Absolute Humidity

A

The mass of water vapor contained in a certain volume of air.

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3
Q

Relative Humidity

A

The ratio of the mass of water vapor at a given temperature to the maximum mass of water vapor the air could hold at that temperature, express as a percentage.

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4
Q

Greenhouse Effect

A

The process by which certain gases (principally water vapor, carbon dioxide, and methane) trap heat that radiates the earth.

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5
Q

Parts Per Million (ppm)

A

The number of molecules (or atoms) in a mixture for every one million molecules (or atoms) in that mixture.

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