One of the following is observed in the evolution by natural selection in England

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White winged moths survived after industrialisation due to thick growth of lichens covering the trees

Predators will not spot a moth against a contrasting background

More melanised moths survived before industrialisation

Dark winged moths could camouflage and survived after industrialisation

answer is D.

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Detailed Solution

In 1850s, i.e before industrialiasation , there were more white winged moths on trees than dark winged moths. but after industrialisation, i.e 1920 there were more dark winged or melanised moths, as smoke and soot settled down on bark of the trees , dark winged moths could not be spotted by birds and they survived and flourished. this is called industrial melanism.

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