Question

sometimes river starts erosion upstream this happens when the head stream gets a lot of water in the early stages of rivers flow​

Answer 1

Answer:

because of the wind it will

Answer 2

Answer:

Headward erosion

Explanation:

The headward erosion is usually defined as an erosional process where the main agent is water, that results in the lengthening of a stream or river channel at its head. It gradually leads to the expansion of the drainage basin. The stream weathers and erodes the soil particles and rock fragments at its headwaters that are opposite to the flow direction. The rate of erosion gradually increases once the headward downcutting starts and eventually forms steeper slopes and the weaker rocks are washed out more rapidly. It also widens the river channel.