Front

This gas makes up 21% of the atmosphere: ozone, oxygen, nitrogen, water vapor

Back

oxygen

Front

Which layer of the atmosphere contains most of the ozone? Options: troposphere, thermosphere, mesosphere, stratosphere

Back

stratosphere

Front

This gas makes up 78% of the atmosphere: oxygen, nitrogen, ozone, carbon dioxide

Back

nitrogen

Front

Order the atmosphere layers from Earth to space: troposphere, stratosphere, mesosphere, thermosphere, exosphere

Back

troposphere, stratosphere, mesosphere, thermosphere, exosphere

Front

Coldest layer of the atmosphere: troposphere, thermosphere, mesosphere, stratosphere

Back

mesosphere

Front

Which layer is where weather occurs? Options: troposphere, thermosphere, exosphere, stratosphere

Back

troposphere

Front

Which layer of the atmosphere is the hottest? Options: troposphere, mesosphere, stratosphere, thermosphere

Back

thermosphere

Front

What causes the temperature to increase in the stratosphere? Options: Nitrogen, Ozone, Water Vapor, carbon dioxide

Back

Ozone

Front

As you go higher in the troposphere, the temperature _______________.

Back

decreases

Front

What is the function of the ozone layer?

Back

to block UV rays from getting to Earth