Question

The main function of a river in its lower courses.
1) erosion
2) transportation
3) deposition
4) erosion and transportation
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Answer 1

Answer:

Option 4

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Answer 2

Explanation:

The volume of water in a river is at its greatest in lower course. This is due to the contribution of water from tributaries. The river channel is deep and wide and the land around the river is flat. Energy in the river is at its lowest and deposition