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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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Gases

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  1. Gases

  2. 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

  3. Gas has been used as a weapon in war. Some gases that come out of volcanoes are poisonous. What can you find out about gases? Carbon dioxide comes in red extinguishers used to kill fires. Helium is lighter than air and can be used to fill a balloon.

  4. What is the most poisonous gas ?

  5. Thanks' for watching By Leah Jardine-Thompson

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