Lesson 18 - Atmospheric Composition

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

What gas do plants change into Oxygen?

What percent of the Atmosphere is Oxygen?

What percent of the Atmosphere is Argon and other gases?

Which is the 3rd largest percent in the mixture of Earth's Atmosphere?

What is the Product of Photosynthesis?

Which is a Trace Gas in Earth's Atmosphere

Which is the 2nd largest percent in the mixture of Earth's Atmosphere?

What percent of the Atmosphere is Nitrogen?