Layers of the Atmosphere

This gas makes up 21% of the atmosphere

• ozone
• oxygen
• nitrogen
• water vapor

The _____ protects us from the harmful UV rays of the sun.

• Troposphere
• Ozone Layer
• Exosphere
• Stratosphere

What layer is the Ozone in?

• Ozone Layer
• Startosphere
• Troposphere
• It's not in one, it has its own

The force of a column of air pressing down is called what?

• Air Mass
• Air Pressure
• Air
• Heavy

Where satellites orbit.

• troposphere
• thermosphere
• exosphere
• mesosphere

Where you will find Aurora Borealis (Northern Lights)

• troposphere
• ionsophere
• exosphere
• mesosphere

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

• decreases
• increases
• stays the same
• gets very hot

Which layer has the highest pressure?

• thermosphere
• stratosphere
• troposphere
• ionosphere

Layer of Earth's atmosphere where weather occurs

• thermosphere
• mesosphere
• stratosphere
• troposphere

Two gases that make up 99% of Earth's atmosphere

• carbon dioxide & oxygen
• nitrogen & carbon dioxide
• nitrogen & oxygen
• nitrogen & water vapor