Chemistry topic 9: atmosphere

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4 Terms

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earths early atmosphere

mostly carbon dioxide with nitrogen and water then increasing due to volcanic activity, plants and algae converted carbon dioxide into oxygen

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the greenhouse effect

keeps the earth warm, greenhouse gases absorb long wavelength radiation reflected off the surface

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acid rain

sulphur dioxide

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potable water

water that has low enough levels of dissolved salts and microbes that is safe to drink, its filtered to remove insoluble particles, then sterilised using chlorine or uv