Which of the following statements about water policy is true?

a.
the united states does not regulate water quality.
b.
policies regulating water pollution and water quality have eliminated environmentalists concern about water.
c.
current laws in place about water policy would eliminate water quality problems if they were enforced.
d.
the clean water act has reduce water contamination, but further efforts are needed to maintain water quality.

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i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )