Which of the following features could be found in the upper course of rivers?
Answer Details
One of the features that could be found in the upper course of rivers is a waterfall.
The upper course of a river is the section closest to its source, where the river is typically narrow and has a steep gradient. Waterfalls often form in the upper course of a river when a band of hard rock overlies softer rock that is more easily eroded by the flowing water. The softer rock is gradually eroded away, leaving a steep drop or waterfall over the hard rock layer.
Ox-bow lakes, on the other hand, are formed in the lower course of a river when the river meanders or bends and erodes the outer bank, causing the river to cut a new channel and leave a curved lake behind. Deltas are formed at the mouth of a river, where the river meets the sea or a lake and deposits sediment, creating a fan-shaped landform. Levees are raised banks that form along the sides of a river as a result of sediment deposition during flooding events.
Overall, waterfalls are a common feature found in the upper course of rivers, while ox-bow lakes, deltas, and levees are typically found in the lower course of rivers.