Vegetated land along water that stabilizes banks and filters pollutants is called which term?

• A. Riparian Zone
• B. Lotic Ecosystem
• C. Percolation
• D. Depositional Zone

Answer: (A)

Riparian zone is the land area along a stream or river that is covered with vegetation and serves to stabilize banks and filter pollutants. The plants’ root systems grip the soil, reducing erosion during floods and runoff. Their roots, leaf litter, and soil organisms trap sediments and uptake nutrients and contaminants, helping to improve water quality before it enters the waterway. The vegetation also provides shade, which keeps water temperatures cooler and supports aquatic life, and slows down runoff to enhance infiltration. In contrast, the flowing-water environment is the lotic ecosystem, percolation refers to water seeping through soil, and a depositional zone is where sediments settle—none of which specifically describe the vegetated bank that stabilizes and cleans the watershed. So, the term is riparian zone.