Midterm Review: Earth's Atmosphere

Front

What is the unit of altitude?

Back

Miles

Front

What gas absorbs UV light in the atmosphere?

Back

Ozone

Front

In which layer of the atmosphere is the ozone layer located?

Back

Stratosphere

Front

What is the concentration of oxygen in the atmosphere?

Back

21%

Front

What is the term for the mixture of gases that surrounds Earth?

Back

Atmosphere

Front

What is the primary function of the ozone layer?

Back

To absorb harmful UV radiation from the sun.

Front

What are the main components of Earth's atmosphere?

Back

Nitrogen (78%), Oxygen (21%), Argon (0.93%), Carbon Dioxide (0.04%).

Front

What is the troposphere?

Back

The lowest layer of Earth's atmosphere where weather occurs.

Front

What is air pressure?

Back

The force exerted by the weight of air above a surface.

Front

What is the difference between the stratosphere and the troposphere?

Back

The stratosphere is above the troposphere and contains the ozone layer; the troposphere is where weather occurs.