Water in the Atmosphere. I. Atmospheric Moisture. Water exists on Earth in 3 forms: Liquid Solid (ice) Gas. In our atmosphere, water exists mainly in its gaseous form: water vapor What is the principal source of water vapor in Earthâ€™s atmosphere?. The oceans!. A. Humidity.
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Water exists on Earth in 3 forms:
What is the principal source of water vapor in Earth’s atmosphere?
The higher the relative humidity, the _______________ the chance that water vapor will condense into rain or snow.
What happens to cool air?
Air cools as it is forced over a topographical feature (like a mountain range).
Two masses of moist air with different temperatures mix
May be liquid or solid
Four main types:
Clouds produce precipitation when its droplets or ice crystals become large enough to fall as rain or snow