In the troposphere, as the altitude goes _______ the temperature goes ________.

We live in the ________.

In the stratosphere, as the altitude goes _____ the temperature goes _______.

The ozone layer is located in the ________.

Most meteors burn out in the ________.

_______ destroys the ozone layer.

The _____ causes the northern lights.

The ionosphere starts at the top of the ______ and extends through the ________.

The hottest of the primary layers is the _______.

This layer extends from 0-10 km.

Weather balloons fly up to this layer.

This layer extends from 400km and beyond.

The layer with the highest air pressure is the ______.

This layer extends from 30-50 km.

99% of the water vapor is found in the ______.

This layer is sometimes considered outer space.

This layer extends from 10-30 km.

This is the layer with the lowest air pressure.

Air planes fly in this layer.

The coldest of the layers is the _____.

This layer extends from 50- 400 km.

Satellites orbit this layer.

The space shuttle orbits this layer.

The ozone layer protects us from ______.

If the ozone layer is destroyed we can expect...

The ozone layer can heal itself if we stop emitting harmful substances.

Layers of the atmosphere are classified by ________ and ______.

Molecules in the exosphere will drift into _____.

The process of trapping of the sun's warmth in a planet's lower atmosphere.