THE AIR UP THERE!!!!!

Front

___________is the result of the weight of a column of air pushing on an area.

Back

Air pressure

Front

In what direction(s) does air exert pressure?

Back

all directions

Front

Altitude and elevation have the same meaning. What is it?

Back

the distance above sea level

Front

As you climb up a mountain what happens to the air pressure?

Back

the higher you go, the air pressure decreases

Front

What happens to the amount of oxygen molecules as altitude increases?

Back

fewer molecules

Front

What causes winds?

Back

differences in air pressure

Front

78% of earth's atmosphere is composed of ______________.

Back

nitrogen

Front

Air pressure is greatest when near Earth's surface because?

Back

The air molecules are packed closer together.

Front

The atmosphere is a blanket of __________________ that surrounds the Earth.

Back

gases

Front

What are the two most common gases in the atmosphere?

Back

Nitrogen and oxygen