Read the following excerpt from "the world without us" by alan weisman:
each march, temperatures normally flutter back and forth
around 32°f as many as 40 times (presumably, climate
change could push this back to february). whenever it is,
the repeated freezing and thawing make asphalt and
cement split. when snow thaws, water seeps into these
fresh cracks. when it freezes, the water expands, and
cracks widen.
which best explains how the structure of this passage supports the author's
purpose?
a. the passage compares the similarities between water and human
creativity to show how both interact to make new york city a
popular destination.
b. the passage shows the effects of frozen and liquid water to prove
that laws protecting the environment are necessary for human
survival
c. the passage shows the effects of the freezing and thawing of
water to highlight that nature will eventually destroy what people
have built
d. the passage traces several events in the order that they will occur
to highlight how people have harmed the environment