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  • Chemistry, OZ Revision Notes

    OZ1

    The Atmosphere

    • Extends 100km above Earth

    • Troposphere and Stratosphere most important

    • 90% of all molecules in troposphere

    Composition of the Troposphere
    Gas Concentration
    Nitrogen 78%
    Oxygen 21%
    Argon 1%
    Carbon Dioxide 400ppm

    Composition of the Atmosphere