Consider the following statements:
1. Corrasion is a mechanical erosion mechanism of the land, arising from the mechanical grinding of a load of traction from the river to the bed and banks of the river.
2. Hydraulic action is a mechanical process, in which the moving water current flows against the banks and bed of a river.
3. Attrition is fluvial erosion, in which wear and tear of the transported material erode the bed load by itself.
Which of the statements given above is/ are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3