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Trees produce oxygen - PowerPoint PPT Presentation

Gases

Gases. Nitrogen. Oxygen. What gases are in are?. Trees produce oxygen and then we breath it in. Nitrogen makes up 78.1% of the Earths air. Carbon Dioxide. We breath out carbon dioxide And trees take it in to survive. Gas has been used as a weapon in war.

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Oxygen: What a Deal!

Oxygen: What a Deal!. Brought to you by Double-Air Incorporated. The Basics of Oxygen. Oxygen. Trees produce oxygen We need oxygen to breathe Save a tree!!!!. A Graphical Interpretation. 8 Protons 8 Neutrons 8 Electrons. (Bentor). Works Cited.

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236 views • 5 slides

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Trees produce oxygen - PowerPoint PPT Presentation

Gases

Oxygen: What a Deal!