Atmosphere Review

This gas makes up 21% of the atmosphere

• ozone
• oxygen
• nitrogen
• water vapor

This gas makes up 78% of the atmosphere

• oxygen
• nitrogen
• ozone
• carbon dioxide

This layer is where weather occurs

• troposphere
• thermosphere
• exosphere
• stratosphere

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

• Air Mass
• Air Pressure
• Air
• Heavy

This process keeps Earth's temperature suitable for life.

• Convection Currents
• Greenhouse Effect
• Global Warming
• Water Cycle

What's the highest layer of the atmosphere? 

• Troposphere
• Thermosphere
• Exosphere
• Ozone Layer

As altitude increases what happens to the air pressure?

• increases
• decreases
• stays the same
• increases then decreases

What is the layer of gases called that surrounds Earth?

• atmosphere
• litosphere
• asthenosphere
• space

This is a protective layer of oxygen found in the stratosphere that keeps us safe from UV light

• Ozone layer

• Greenhouse layer

• Exosphere

• Mesospheric Zone

The layer that extends into space where there are very few air molecules

• Stratosphere

• Exosphere

• Mesosphere

• Troposphere

• Thermosphere