Slow-moving inner bank where sediments settle is described by which zone?

Slow-moving inner bank where sediments settle is described by which zone?

• A. Riffle
• B. Erosional Zone
• C. Depositional Zone
• D. Infiltration

Answer: (C)

When a river meanders, water on the outer bank moves faster and erodes material, while the inner bank slows down. That reduction in flow velocity lowers the river’s ability to carry sediment, so particles settle out and accumulate where the water is slowest. This creates a depositional zone, where sediments settle and form features like point bars along the inside of bends. The other terms describe different conditions: riffl es are fast, shallow sections with high energy; erosional zones involve material being worn away; infiltration is about water entering the soil, not in-channel deposition.

When a river meanders, water on the outer bank moves faster and erodes material, while the inner bank slows down. That reduction in flow velocity lowers the river’s ability to carry sediment, so particles settle out and accumulate where the water is slowest. This creates a depositional zone, where sediments settle and form features like point bars along the inside of bends. The other terms describe different conditions: riffl es are fast, shallow sections with high energy; erosional zones involve material being worn away; infiltration is about water entering the soil, not in-channel deposition.