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    Question

    Chemicals like hexadeconol, a long chain alcohol when

    mixed with surface 5 mm of soil can reduce evaporation by about:
    A 5% Correct Answer Incorrect Answer
    B 10% Correct Answer Incorrect Answer
    C 20% Correct Answer Incorrect Answer
    D 40% Correct Answer Incorrect Answer
    E 15% Correct Answer Incorrect Answer

    Solution

    In chemical mulches, chemicals like hexadeconol, a long chain alcohol when mixed with surface 5 mm of soil can reduce evaporation by about 40%. The surface layer of a treated soil dries out more rapidly than that of untreated soil, creating a diffusional layer to evaporation.

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