Overgrazing should be directly related to increased the population when it has the major problem. Hence, the correct answer is option B. increased pollution.
What is overgrazing?
It should be arise at the time when the plants should be exposed to intensive grazing for expanding the period of time or it should be without considering the recovery period i.e. enough.
Also, it should be leaded via livestock that should be not managed properly with respect to the agricultural applications, natural reserves.
Hence, the correct answer is option B. increased pollution.
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