Question

how do wetlands help maintain good water quality?
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Explanation:

1. Wetlands filter sediments: Sediments like sand, silt from runoff are trapped by wetland vegetation and soil, preventing them from clouding water and harming aquatic life.
2. Remove nutrients: Excess nutrients (e.g., nitrogen, phosphorus from fertilizers) are taken up by wetland plants or transformed by microbes, reducing eutrophication.
3. Absorb pollutants: Pollutants such as heavy metals, pesticides in water are adsorbed by wetland soils or broken down by organisms, purifying water.
4. Promote sedimentation: Slow - moving water in wetlands allows suspended particles to settle out, improving water clarity.
5. Support microbial breakdown: Microbes in wetlands decompose organic matter, reducing organic pollutants and recycling nutrients.
6. Buffer against runoff: Wetlands act as a buffer, slowing down and filtering stormwater runoff before it enters larger water bodies, reducing the load of contaminants.

Answer:

1. Wetlands filter sediments from water.
2. Wetlands remove excess nutrients (e.g., N, P) from water.
3. Wetlands absorb pollutants (e.g., heavy metals, pesticides).
4. Wetlands promote sedimentation of suspended particles.
5. Wetlands support microbial breakdown of organic matter.
6. Wetlands buffer and filter stormwater runoff.