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Industrial melanism as observed in peppered moth proves that

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Melanism is a pollution-generated feature.

The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area

The melanic form of the moth has no selective advantage over lighter form in industrial area

The frequency of melanic form of moth increased because many escaped from predators by camouflage.

answer is D.

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the frequency of the melanic form increased in polluted areas

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