Layers of the Atmosphere

Which layer of the atmosphere do we live in?

• troposphere
• mesosphere
• thermosphere
• exosphere

Which layer of the atmosphere contains a special form of oxygen called the ozone layer?

• mesosphere
• stratosphere
• thermosphere
• ionosphere

What are the two most abundant gases in earth's atmosphere?

• nitrogen & oxygen
• carbon dioxide & water vapor
• hydrogen & oxygen
• oxygen and ozone

What percentage of our atmosphere is made up of other gases such as argon, water vapor, and carbon dioxide?

• 1%
• 21%
• 78%
• 90%