Solution

Find out more about river transportation.

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.

Find out more about the landforms of erosion in the upper course of a river.

Deposition can occur:

• where a river enters a shallow area (this could be when it floods and comes into contact with the flood plain)
• at the base of a waterfall
• on the inside bend of a meander
• towards its mouth where it meets another body of water.

Find out more about river deposition.

Large boulders and rocks are rolled along the river bed.

Find out more about how rivers transport material.

The gradient of the long profile becomes more concave as vertical erosion reduces.

Find out more about the long profile of a river.