The long profile of a river quiz
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The long profile shows the gradient of a river as it journeys from source to mouth.
The long profile of a river is a way of displaying the channel slope (gradient) of a river along its entire length.
A river tries to achieve a smooth curve to reach its base level at sea; this is called a graded long profile.
The middle course of the long profile of a river is concave.
The long profile of a river starts at its source.
Transportation in the upper stage main involves large boulders being moved by traction.
The velocity of a river increases downstream because a lower proportion of water comes into contact with the bed and the banks reducing friction.
The lower course of the river has the deepest channel. This is because the volume of water is the greatest.
Lateral erosion takes over from vertical erosion as the predominant type of erosion in the middle course.
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