What does the change in moth populations before and after industrialization demonstrate?

Step-by-step solution

The change in moth populations demonstrates how industrial pollution affected natural selection, leading to an increase in dark-winged moths due to changes in their environment .During post- industrialisation period, the tree trunks became dark due to industrial smoke and soots. Under this condition the white-winged moth did not survive due to predators, dark-winged or melanised moth survived. Before industrialisation set in, thick growth of almost white-coloured lichen covered the trees - in that background the wh