The Atmosphere

Match it! Select the correct answer from the pull down...Good luck!

Where does 99% of the atmosphere lie within?

What percentage of the atmosphere is carbon dioxide?

When water changes from a liquid to a gas, this is called

What removes oxygen from the atmosphere?

When water changes form from a gas to a liquid, this is called

What is the difference between water vapor and steam?

What contributes oxygen to the atmosphere?

What are the two main gases in Earth's atmosphere?