In 1982, about 8 percent of the trees in West Germany were damaged from pollution. One year later, the figure jumped to 34 percent and to 50 percent by 1984. This is an example of the _____ effect.
A) greenhouse
B) geometric equation
C) threshold
D) photosynthesis

Question

Quizplus · Accepted Answer

The rapid increase in the percentage of trees damaged from pollution, from 8 percent to 50 percent within two years, exemplifies the threshold effect, where a certain point is reached that triggers a significant and often sudden change or response.

In 1982, About 8 Percent of the Trees in West