The Atmosphere Around You

Front

What is the most abundant gas in the atmosphere?

Back

Nitrogen, which makes up 78 percent of the atmosphere.

Front

What gas makes up 21 percent of the atmosphere?

Back

Oxygen.

Front

What is the term for elevation above sea level?

Back

Altitude.

Front

Which layer of the atmosphere is closest to Earth's surface?

Back

Troposphere.

Front

What is the third highest layer of the atmosphere?

Back

Mesosphere.

Front

What causes global winds?

Back

Unequal heating of Earth’s surfaces over large areas.

Front

What is the layer of the atmosphere where weather occurs?

Back

Troposphere.

Front

What is the layer above the troposphere?

Back

Stratosphere.

Front

What is the layer of the atmosphere that protects us from meteoroids?

Back

Mesosphere.

Front

What is the term for the movement of air from areas of high pressure to areas of low pressure?

Back

Wind.