What role do wetlands play in the environment?

Wetlands are incredibly valuable ecosystems that provide numerous environmental benefits, and the correct choice reflects this multifaceted role.

First, wetlands act as a barrier to coastal erosion. Their complex root systems stabilize shorelines and reduce the impact of waves, which is particularly important in coastal areas subject to rising sea levels and erratic weather patterns.

Second, wetlands filter pollutants from water. They act as natural water purifiers, trapping sediments and absorbing nutrients before they can enter larger water bodies. This filtration process helps to improve water quality and prevent pollution downstream.

Lastly, wetlands provide crucial habitat for a diverse array of wildlife. They serve as breeding grounds, feeding sites, and shelter for various species, including birds, amphibians, fish, and invertebrates, making them biodiversity hotspots.

Given that wetlands perform all of these significant functions, the most accurate answer encompasses all of the above roles they play in the environment.