Question

In the 1970s, the amount of industrial pollution decreased and the trees began to return to their preindustrial appearance. Which of the following graphs best demonstrates the change in the frequencies of light-colored moths and dark-colored moths in the population from 1950 to 2000? the dark-colored moths are represented with a solid line and the light-colored moths are represented with a dashed line.

Answer 1

The graph that best demonstrates the change in the frequencies of light-colored moths is C. (dashed line slightly wiggles at the bottom...exponentially decreases)

What is a Graph?

This refers to the use of lines that has x and y coordinates to represent data on the various planes.

Hence, we can see that from the period 1970, there has been a change in industrial pollution as it reduced and there was a change in the frequencies of light-colored moths and dark-colored moths is option C.

Read more about graphs here:
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