Circulation of Earth's Air and Water

What causes wind?

• differences in air pressure

• differences in gravity

• difference in oxygen

• differences in the thermosphere

What causes differences in air pressure?

• even heating of the Earth

• Even cooling of the earth

• uneven heating of the earth

• global warming

What is responsible for warming the Earth’s surface and creating wind?

• The Moon
• Earth's interior (inside)
• Coriolis effect
• The Sun

Why does warm air rise?

• Warm air is more dense than cooler air.
• Warm air has more pressure than cooler air.
• Warm air is less dense than cooler air.
• Warm air has a higher dew point than cooler air.

Is this a land or a sea breeze?

• land breeze
• sea breeze

Air at the poles is colder and denser so it_______________.

• rises

• circulates

• stagnates

• sinks

In the Northern Hemisphere, winds traveling north appear to curve east because of the:

• trade winds

• convection currents

• Coriolis effect

• polar easterlies

Winds that blow from the east are called ____.

• Polars
• Westerlies 
• Easterlies
• Temperates

Winds that blow from the west are called ____.

• Easterlies
• Polars
• Westerlies
• Temperates

Surface currents are a result of

• Global Wind Patterns
• Earth's Rotation
• Density
• All of the above