Atmosphere Review

The layers of the atmosphere are classified according to changes in 

• altitude
• temperature
• pressure
• density

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 of the atmosphere contains most of the ozone

• troposphere
• thermosphere
• mesosphere
• stratosphere

This layer is where weather occurs

• troposphere
• thermosphere
• exosphere
• stratosphere

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 in the stratosphere that keeps us safe from UV light

• Ozone layer

• Greenhouse layer

• Exosphere

• Mesospheric Zone

The composition of our air is made up mainly of which two gases?

• Nitrogen and Helium

• Nitrogen and Oxygen

• Oxygen and Carbon Dioxide

• Oxygen and Methane

Which of the following is the correct order of the atmosphere layers from Earth to space?

• troposphere, stratosphere, mesosphere, thermosphere, exosphere
• troposphere, mesosphere, thermosphere, exosphere, stratosphere
• thermosphere, stratosphere, mesosphere, troposphere, exosphere
• troposphere, stratosphere, mesosphere, exosphere, thermosphere