Describe the landforms formed by the river in its upper course (any th...
Landforms formed by the river in its upper course
The upper course of the river is the beginning of a river's journey, starting from the source of the river to the middle course. In this course, the river has a steep gradient, high velocity, and is characterized by vertical erosion. The landforms formed by the river in its upper course are:
V-shaped valleys: In the upper course of the river, the river cuts through the hard rock, which results in the formation of V-shaped valleys. The steep sides of the valleys are known as interlocking spurs, which are formed due to the erosion of the river on the hard rock. The river uses hydraulic action, abrasion, and attrition to erode the rocks and create a V-shaped valley.
Waterfalls: Waterfalls are formed when a river flows over a steep vertical drop, such as a cliff. In the upper course of the river, the river erodes the soft rock underlying the hard rock. The hard rock is left unsupported and eventually collapses, creating a vertical drop. The river then falls over this vertical drop, creating a waterfall. The action of the water at the base of the waterfall causes further erosion, which can lead to the formation of a plunge pool.
Gorges: Gorges are narrow and deep valleys that are formed due to the vertical erosion of the river. In the upper course of the river, the river erodes the hard rock and creates steep sides. The river flows through this narrow valley, which is characterized by high cliffs and deep water. The river continues to erode the sides of the valley, which makes the gorge deeper and narrower.
In conclusion, the landforms formed by the river in its upper course are mainly due to vertical erosion. The V-shaped valleys, waterfalls, and gorges are some examples of the landforms that are formed in this course of the river. These landforms play a significant role in shaping the landscape and creating habitats for plants and animals.
Describe the landforms formed by the river in its upper course (any th...
INTERLOCKING
Interlocking spurs are fingers of land that jut out into the river valley that streams and rivers are forced to flow around in the upper course.
RAPIDS
Rapids are fast flowing, turbulent sections of the river where the bed has a relatively steep gradient. They are found in the upper course of the river.
WATERFALLS
Waterfalls commonly form where water rushes down steep hillsides in upland areas
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