Which of the following features are associated with a river capture? I. Misfit river II. River terrances III. Elbow of capture IV. Wind gap
Answer Details
A river capture occurs when a river channel diverts its course and begins to flow into a different river system. The diversion can occur due to various factors, such as erosion or tectonic movement.
Misfit river refers to a river that does not seem to fit the valley it is flowing through. It may indicate a river capture, as the river has not yet adjusted to its new course.
An elbow of capture is a sharp bend in a river that marks the point where the river is actively eroding the headward region of another stream. This is a clear indicator of a river capture in progress.
A wind gap is a notch or pass in a mountain ridge that has no surface stream flowing through it. It can be a result of a river capture, where the river erodes the passageway, but subsequently diverts its course, leaving the gap dry.
River terraces are flat, bench-like surfaces that occur along river valleys. They are usually formed by the river eroding its channel and leaving the old floodplain behind. While river terraces can occur for various reasons, they are not directly associated with a river capture.
Based on the above explanations, options (1) I,III and IV is the correct answer as misfit river, elbow of capture, and wind gap are all features associated with river capture. is incorrect, as river terraces are not directly associated with a river capture. is also incorrect, as river terraces are excluded. Finally, is incorrect, as it excludes misfit river, which can be an important indicator of a river capture in progress.