The features formed by river erosion include:
- Gullies: These are steep, narrow channels that form when water carries soil away, typically from runoff.
- Meanders: These are curves or bends in a river that form as water erodes the bank on one side and deposits sediment on the other.
- Oxbow lakes: These form when a meander from a river is cut off, creating a crescent-shaped lake.
- Rills: Small channels formed by surface runoff that can lead to larger erosion features over time.
- Streams: While streams themselves are not a feature formed by erosion, they often contribute to erosion as they flow and can create other features through their movement.
- Waterfalls: These occur when a river flows over a steep drop or cliff, often resulting in significant erosion at the base.
Given the context of your question, the correct answers for features specifically formed by river erosion are gullies, meanders, oxbow lakes, rills, and waterfalls. Streams are part of the process but not specifically a feature formed solely by erosion.
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