Atmospheric Circulation

Warm air is lighter than cold air

• True

• False

Warm air rises

• True

• False

Cold air descends

• False

• True

The air in the Hadley cell descends at the polar circles

• True

• False

Some of the desert areas of the world formed because of descending air

• True

• False

What part of the atmosphere features convection cells, wind, clouds, and weather?

• the thermosphere

• the stratosphere

• the mesosphere

• the troposphere

Currents of circulating air or other fluid caused by differences in temperature

• Jet streams

• Coriolis

• Trade winds

• Convection

Air that is warmer than the air surrounding it

• rises

• sinks

• stays where it is

Air that is cooler than the air surrounding it

• rises

• sinks

• stays where it is

Rising air leads to ____ pressure at ground level

• High

• Low