In the 1970s, the U.S. government passed laws to protect the water supply.
Which of the following best describes something these laws were intended to
do?
A. Regulate the amount of pollution industries and cities are allowed
to produce
B. Regulate the amount of water U.S. households are allowed to use
each year
C. Regulate the amount of pollution U.S. households are allowed to
produce
D. Regulate the amount of water that can be pumped from aquifers
for irrigation