Exam 19: Moisture, Clouds, and Weather

Which of the following conditions is likely to lead to rain?

__________ clouds are broad sheet-like clouds.

__________ and __________ are visible concentrations of water droplets or ice crystals in air.

A/an __________ __________forms when a warm air mass is trapped between two colder air masses.

Hail falls only from cirrus clouds.

Sea and land breezes are caused by uneven heating and cooling of land and water.

__________ fog occurs when warm, moist air from the sea blows onto cooler land.

Death Valley is an example of a __________.

Which of the following processes would lower the relative humidity of a parcel of air?

Supersaturated droplets do not freeze because:

The __________ is the temperature at which the relative humidity of air reaches 100 percent.

When air cools as it rises along a land surface, __________ fog forms.

High-altitude clouds composed of ice crystals are called __________ clouds.

__________ is the mass of water vapor in a given amount of air expressed in grams per cubic meter (g/m³).

Since warm air can hold more moisture than cold air, clouds generally do not form over __________ regions.

When relative humidity exceeds 100 percent, the air becomes __________.

Cumulus clouds are wispy clouds that look like hair blowing in the wind.

__________ is a condition in which water droplets in air do not freeze even when the air cools below the freezing point.

Sinking air exerts a downward force to form a/an __________ region.

A/an __________ is a broad, circular storm with intense low pressure that forms over warm oceans.