Answer :
Answer:
The correct answer is - natural selection in moths.
Explanation:
This is an event of historical Industrial melanism, an event caused by the process of natural selection. Due to this event, the evolution of dark body colors in moth species that present in such habitats become black by industrial soot.
Peppered moths in the UK were pale grey before the revolution of industries, But after the habitat become polluted with soot from coal‐fired industries, melanic snd become numerous and spread to other regions.
After the century the pollution comes down and the pale phenotype becomes the predominant form.