Answer :

The most common example is Industrial Melanism. Earlier moths used to be light coloured winged moth but as industrialism came and the pollution increased. Due to increased pollution light coloured winged moth had no place to hide thus they were more predated and thus evolution took place thereby dark winged moth evolved.

Organic evolution took place as earlier number of light winged moths were more than dark winged but after industrialisation number of dark winged moths increased.

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