The Atmosphere

Does the thermosphere or the troposphere have the greatest atmospheric pressure?

______________________ layer of gases that surround the earth.

Supports life on Earth by protecting it from dangerous _____________________ _______________.

Provides ____________ plants and animals need to breathe

What percent of the atmosphere is nitrogen?

What percent of the atmosphere is oxygen?

Nitrogen – removed from atmosphere by _____________________ and ___________________________

Oxygen – Released into atmosphere by ___________________ as they photosynthesize.

Water vapor (H20) – amount _________________ in the atmosphere

Carbon dioxide - Removed from the atmosphere by ____________________________.

Pressure exerted on earth by the ___________________________.

Air pressure decreases with ______________________ in altitude.

At greater altitudes the same volume of air contains ________________molecules of gases.

The atmosphere is warmed by ____________________ radiation

Which of the following shows the layers of the atmosphere in the correct order from earth's surface?

Weather takes place in this layer of the atmosphere.

The ozone layer is found in this layer of the atmosphere.

This is the coldest layer of the atmosphere and meteors burn up in this layer.

This is the hottest layer of the atmosphere.

This layer is the beginning of outer space.