Layers of the Atmosphere

Front

What is the hottest layer of the atmosphere?

Back

Thermosphere

Front

What are the two main gases that make up 99% of the Earth's atmosphere?

Back

Nitrogen (78%) and Oxygen (21%)

Front

What layer of the atmosphere absorbs ultraviolet rays?

Back

Ozone layer

Front

What is the outermost layer of the atmosphere where satellites orbit?

Back

Exosphere

Front

In which layer of the atmosphere do all weather events occur?

Back

Troposphere

Front

What is the layer of the atmosphere located above the troposphere?

Back

Stratosphere

Front

What is the layer of the atmosphere where meteors burn up?

Back

Mesosphere

Front

What is the primary function of the ozone layer?

Back

To absorb harmful ultraviolet radiation from the sun.

Front

What is the approximate altitude of the troposphere?

Back

Up to about 8-15 kilometers (5-9 miles) above sea level.

Front

What is the temperature trend in the thermosphere?

Back

Temperature increases with altitude.