Question

multiple choice question
the clean water act has resulted in ______.

a drastic improvement in the water quality of surface waters
all surface water bodies being swimmable and fishable
the vast majority of surface water bodies meeting drinking water standards
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Explanation:

The Clean Water Act aimed to regulate water pollution and has led to significant improvements in surface water quality. The option "all surface water bodies being swimmable and fishable" is incorrect as not all bodies meet this, and "the vast majority of surface water bodies meeting drinking water standards" is also incorrect as surface water often needs treatment for drinking. The correct option is the one about drastic improvement in surface water quality.

Answer:

A. a drastic improvement in the water quality of surface waters