In the context of fluvial processes, what does the term 'interfluve' refer to?

• A. The valley bottom
• B. Higher land between valleys
• C. Stream bank erosion
• D. The water level in a stream

Answer: (B)

The term 'interfluve' refers to higher land situated between two valleys. This landform acts as a dividing line or ridge that separates drainage basins or watersheds. Interfluves are important in the study of fluvial processes, as they help define the flow of water from one area to another and influence sediment transport and deposition in adjacent river systems. Their elevation relative to the surrounding valleys means that they play a crucial role in hydrology and landscape development, directing water movement and potentially affecting the ecosystems on each side of the divide. In contrast, the other options pertain to different features or aspects of rivers and valleys that do not define what interfluve means in this context.