University of Wisconsin Stevens Point University of Wisconsin Stevens Point Pond and wetland Oxygen levels in shallow ponds vary greatly from day to night. Also shallow ponds warm up uniformly, have muddy bottoms, and have rooted plants grow across them. A rim of soggy land chocked full with vegetation, a wetland, often encircles a pond.
Wetlands provide homes for wildlife, purify water, absorb flood waters and are rich in minerals.
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