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    Question

    When Pi is productivity per unit input of the limited

    or non-renewable resource, Si is alteration in soil properties, Wi is change in water resource and quality, Ci modification in climatic factor and t is the time, the index of sustainability (Is) can be computed as
    A Is = (Pi Ă— Si Ă— Wi Ă— Ci) / t Correct Answer Incorrect Answer
    B Is = f((Pi Ă— Si Ă— Wi Ă— Ci) / t) Correct Answer Incorrect Answer
    C Is = f(Pi + Si + Wi + Ci) Ă— t Correct Answer Incorrect Answer
    D Is = [f(Pi + Si + Wi + Ci)] / t Correct Answer Incorrect Answer

    Solution

    Index of sustainability is computed as  Is = f((Pi × Si × Wi × Ci) / t)

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