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    Geography A-Level

    Chemical Weathering and Carbonation

    What Chemical Weathering and Carbonation means in Geography A-Level, as defined for Pearson Edexcel.

    Definition of Chemical Weathering and Carbonation

    The mechanism by which atmospheric CO2 reacts with rainwater to form carbonic acid, facilitating the breakdown of silicate rocks and the transport of bicarbonate ions to oceans.
    Pearson Edexcel · The Carbon Cycle and Energy Security

    Topics that use Chemical Weathering and Carbonation

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    Using Chemical Weathering and Carbonation in the exam

    Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.

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    All Geography A-Level terms