Adapted from Colin Butler, "Human Carrying Capacity and Human Health." © 2004 by Public Library of Science. The passage refers to carrying capacity, or the maximum population size of a species that an environment can support.

The graph indicates that the population projections for Constant Fertility and High Fertility rates begin to diverge significantly in which time span?

2040 - 2060

How does the graph relate to the passage?

It provides support for the idea that there will be a drastic increase in global population if fertility rates remain constant.

The author implies that Reverend Thomas Malthus was influential because he

developed a framework for balancing population growth and resources.

Which choice provides the best evidence for the answer to the previous question?

lines 3 - 8 ("In . . . marriage")

The author's discussion of the "Green Revolution in paragraph 4 (line 34) primarily serves to

provide a positive contrast to the dire predictions made elsewhere in the passage.

In line 30, "sympathetic" to most nearly means

supportive of.

Which choice provides the best evidence for the answer to the previous question?

lines 47 - 52 ("In . . . rates")

It can reasonably be inferred that Borlaug viewed the dramatic increase in cereal production as

a partial solution to global overpopulation that will fail if other factors are not addressed.

In the second paragraph (lines 12-20), the words "fears," "concerns" and "scarred" primarily serve to

emphasize the anxiety surrounding predictions regarding overpopulation.

The primary purpose of the passage is to

introduce the idea that global population growth has continued to be a serious concern despite advances in agriculture and contraception.

According to the graph, if the High Fertility rate is maintained

the world's population will roughly double between 2010 and 2100.