Energy in Chemistry The Atmosphere and Oceans
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CD2 Energy in Chemistry The Atmosphere and Oceans The atmosphere is a cocktail of gases . The exact amounts of each gas vary as the amount of water vapour is variable. Name of Gas Amount in air % Nitrogen Oxygen Argon 78 21 1 The amount of carbon dioxide in the atmosphere is tiny (0.01%). The amounts of carbon dioxide and oxygen gas are balanced and stay the same. Photosynthesis in plants converts carbon dioxide into oxygen. Breathing and burning convert oxygen into carbon dioxide. Burning a lot of fossil fuels destroys the balance by putting a lot of carbon dioxide into the atmosphere. This traps the sun's rays and will not allow them to escape, this is called the greenhouse effect. This causes the earth to become hotter and is called global warming. Problems caused by this are more violent weather and melting ice-caps making the sea rise. Burning fossil fuels that contain sulphur also makes the gas sulphur dioxide which dissolves in...


