Front

What is the troposphere?

Back

The lowest layer of the atmosphere where weather occurs and temperature decreases with altitude.

Front

What happens to temperature in the troposphere as you go upward?

Back

The temperature decreases.

Front

What is the stratosphere?

Back

The second layer of the atmosphere, above the troposphere, where the ozone layer is located and temperature increases with altitude.

Front

What is the function of the ozone layer?

Back

It absorbs ultraviolet light rays from the sun, protecting living organisms on Earth.

Front

What is the mesosphere?

Back

The third layer of the atmosphere, above the stratosphere, where temperature decreases with altitude and can reach as low as -90 degrees Celsius.

Front

What is the temperature range in the mesosphere?

Back

-90 to -50 degrees Celsius.

Front

What is the thermosphere?

Back

The fourth layer of the atmosphere, above the mesosphere, where temperature increases significantly and can reach up to 2,500 degrees Celsius.

Front

Which layer of the atmosphere is the hottest?

Back

Thermosphere.

Front

What is the exosphere?

Back

The outermost layer of the atmosphere, where the atmosphere thins out into space.

Front

How does air pressure change with altitude in the atmosphere?

Back

Air pressure decreases as altitude increases.