CK12 11.6 Air Masses

What is an air mass?

• A small body of air with varying conditions

• A large body of air that has about the same conditions throughout

• A cloud formation

• a symbol on a weather map

Where do air masses form?

• on weather maps

• over polar or tropical regions; over land or an ocean

• in urban areas only due to pollution

• inside weather stations

What characteristics do air masses that form over oceans have?

• the air mass is dry

• the air mass is moist

What are air masses called that form over continents?

• Equatorial air masses

• Continental air masses

• Maritime air masses

• ground air masses

What type of air does a continental polar air mass have?

• Cold dry air

• Cold moist air

• Warm moist air

• Warm dry air

Cold air masses tend to move toward the _________

• poles

• equator

Warm air masses tend to move toward the __________.

• poles

• equator

Why do air masses move?

• They are pushed by rain storms

• They are pushed by high level winds and jet streams

• Because of the gravitational pull of the moon

What effect causes air masses to move on a diagonal?

• The Butterfly effect

• The Doppler effect

• The Coriolis effect

• The Greenhouse effect

Which air masses have warm moist air?

• Continental polar air masses

• Continental tropical air masses

• Maritime polar air masses

• Maritime tropical air masses