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    Question

    The pH in soils can be raised by

    adding:
    A Sand Correct Answer Incorrect Answer
    B Lime Correct Answer Incorrect Answer
    C Sulphur Correct Answer Incorrect Answer
    D Hydrochloric acid Correct Answer Incorrect Answer

    Solution

    Adding lime increases soil pH, as it adds calcium (Ca) and/or magnesium (Mg), and reduces the solubility of Al and Mn in the soil.

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