Explain the increases in the numbers of melanic(dark winged) moths in the urban areas of post-industrialisation period in England.

In the post-industrilasiation period in England

With the increases in atomic number in period

State a reason for the increased population of dark coloured moths coinciding with the loss of lichens (on tree barks) during industrialization period in England.

Wiht increasing atomic number in a certain period

How can evolution by natural selection be explained by melanised moths before and after industrialisation in England ?

In England, before the Industrialisation set in, it was observed that there were more white winged moths on the trees. However after industrialisation, there were more melanised moths in the same area. This is an example of