WHY IS THE WORK OF EROSION AND TRANSPORTATION OF A RIVER MORE IN THE MOUNTAINS THAN IN THE PLAINS ?
The work of erosion and transportation of a river is more in the mountains than in the plains because when the water flows in the slopes of the mountains , it is in its 1st course which means that it flows very fast, depositing and eroding all that it can. But when it flows through plains , it is in its 3rd course which means that the flow is very slow which makes it a bit difficult for the water to deposit or erode the substances.