All options are correct because acid precipitation does indeed lower the pH of water bodies, affecting aquatic ecosystems and impairing aquatic organisms' ability to obtain calcium for their skeletons. Additionally, measures have been taken in the United States to reduce the emissions that lead to acid precipitation, resulting in a significant reduction of its occurrence.

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Acid Precipitation

Question 68

Multiple Choice

Acid precipitation

A) affects aquatic ecosystems by lowering the pH of the water.
B) impairs the ability of aquatic organisms to get calcium for skeleton production.
C) has been significantly reduced in the United States.
D) All options are correct.

Correct Answer: