The atmosphere today

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  • The atmosphere today
    • Current composition of the atmosphere:
      • Nitrogen= 78%
      • Oxygen= 21%
      • Argon= 0.9%
      • Carbon dioxide= 0.04%
      • Other gases= traces
    • Small changes in the atmosphere occur through:
      • Volcanic activity (produce a lot of sulphur dioxide)/ lightning (produce nitrogen oxides)
      • Human activity
        • Burning fossil fuels increases the amounts of carbon dioxide, carbon monoxide and sulphur dioxide.
        • Farming- cattle and rice fields release large quantities of methane.
        • Deforestation- there are were trees to remove carbon dioxide.
    • Mr Parr song

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