Question

which of the following activities is the best way to reduce acid rain?
a burning fossil fuels for energy, which results in lower sulfur dioxide emissions
b limiting the amount of sulfur dioxide and nitrogen oxides that are emitted into the atmosphere
c adding limestone to bodies of water, which helps bring up the ph
d planting acid - resistant plants to improve crop yield

Explanation:

Acid rain is mainly caused by sulfur dioxide ($\ce{SO2}$) and nitrogen oxides ($\ce{NO_x}$) emissions. Limiting these emissions (Option B) addresses the root cause. Burning fossil fuels (Option A) actually increases $\ce{SO2}$ emissions. Adding limestone (Option C) and planting acid - resistant plants (Option D) are mitigation measures for acid rain's effects, not for reducing acid rain itself.

Answer:

B. limiting the amount of sulfur dioxide and nitrogen oxides that are emitted into the atmosphere