According to the passage the most valuable role wetlands play is as

Wetlands provide many societal benefits.

Explanation:

Food and habitat for fish and wildlife, including threatened and endangered species; water quality improvement; flood storage; shoreline erosion control; economically beneficial natural products for human use; and opportunities for recreation, education, and research Figure 28.

make sure the topic of your persuasive essay is not something someone else is writing about.

the maximum speed limit is 55 mph on a two-lane undivided highway and for vehicles towing trailers.