Atmosphere

Front

Which layer of the atmosphere has weather?

Back

troposphere

Front

Which gas makes up the largest portion of air? Options: oxygen, nitrogen, carbon dioxide, methane

Back

nitrogen

Front

What protects the earth from harmful UV rays from the sun?

Back

the ozone

Front

The layer of the atmosphere containing the ozone layer is: troposphere, stratosphere, thermosphere, mesosphere

Back

stratosphere

Front

Which of the following are greenhouse gases? Carbon dioxide, Methane, Water vapor

Back

All answers are correct

Front

What happens to the temperature if more greenhouse gases are released into the atmosphere?

Back

Temperature goes up

Front

What is the greenhouse effect?

Back

The warming of a planet due to trapped radiation.

Front

Increased carbon dioxide may cause global warming by:

• allowing more sunlight into the atmosphere.
• reflecting more sunlight from clouds.
• reducing the amount of oxygen in the air.
• trapping more heat in the atmosphere.

Back

trapping more heat in the atmosphere.

Front

Which is a natural source of greenhouse gases? Options: aerosols, deforestation, volcanic eruptions, burning fossil fuels

Back

volcanic eruptions

Front

What do they hope banning CFCs will do for the ozone layer?

Back

Make the ozone hole smaller