SCIENCE
EARTH SCIENCE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -V-shaped valleys are mostly formed in higher altitudes with steep slopes where the force of the river is stronger. Fast flowing water carrying sediments cut the surface straight downwards at a rapid pace. This is called vertical erosion.
Detailed explanation-2: -Rivers begin high up in the mountains so they flow quickly downhill eroding the landscape vertically. The river cuts a deep notch down into the landscape using hydraulic action, when the sheer force of the water gets into small cracks and breaks down the sides of the river valley.
Detailed explanation-3: -V-shaped valleys are carved out by the river in their youthful stages. They are formed by the erosional actions of the rivers. Their shapes are of the letter of the English alphabet V. They are associated with gorges, canyons etc.
Detailed explanation-4: -V-shaped valley The rocks which have fallen into the river help the process of corrasion and this leads to further erosion. The river transports the rocks downstream and the channel becomes wider and deeper creating a V-shaped valley between interlocking spurs.
Detailed explanation-5: -The Grand Canyon in the Southwest of the United States illustrates a V-shaped valley. The Colorado River carved a V-shaped canyon with steep sides out of the Colorado Plateau’s rock after millions of years of erosion. This canyon is now known as the Grand Canyon.