Greenfield's Atmospheric Layers Review

Front

What is the ozone layer?

Back

A layer of ozone gas in the stratosphere that protects the Earth from harmful ultraviolet (UV) radiation.

Front

Why is it important to wear sunscreen?

Back

Sunscreen protects the skin from UV radiation, which can cause sunburn and increase the risk of skin cancer.

Front

What happens to the ozone layer over time?

Back

The ozone layer can decrease in size due to pollution and chemicals like chlorofluorocarbons (CFCs), leading to more UV radiation reaching the Earth.

Front

What is the troposphere?

Back

The lowest layer of the atmosphere where we live, and where weather occurs.

Front

What is the stratosphere?

Back

The layer of the atmosphere above the troposphere, which contains the ozone layer.

Front

What is the mesosphere?

Back

The layer of the atmosphere above the stratosphere where meteors burn up upon entering.

Front

What is the thermosphere?

Back

The layer of the atmosphere above the mesosphere, known for its high temperatures and where the auroras occur.

Front

What is the exosphere?

Back

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

Front

How does air density change with altitude?

Back

Air density decreases as altitude increases, meaning there is less mass in a given volume of air.

Front

What is air pressure?

Back

The force exerted by the weight of air above a surface; it decreases with altitude.