Question

What event in history led to the the dark-colored peppered moth being better able to survive than the lighter-colored variety? A) The pollution from the Industrial Revolution darkening the trees. B) The lighter-colored moths had a shorter life span. C) The dark-colored moths were physically stronger. D) The dark colored moths were more intelligent.

Answer 1

The correct answer would be option A.

Pollution generated as a result of the industrial revolution led to the accumulation of dust, soot, et cetera on the bark of trees which led to the darkening of the bark of the trees.

Consequently, the dark-colored peppered moth had a survival advantage as they were better able to camouflage with dark trees.

Natural selection increased the number of the dark-colored peppered moth.

Thus, it can be concluded that pollution from the industrial revolution darkened the trees which led to an increase in the number of dark-colored peppered moths.

Answer 2

The pollution from the Industrial Revolution darkening the trees. After the trees darkened from all the soot in the air, the white moths were easier to see and more vulnerable to predators. The dark moths blended into the dark tree bark.