Question

Which of the following statement(s) is/are correct?

• A. A river flows from lower altitude to higher altitude.
• B. Depositional landforms are mostly formed in the old stage of a river.
• C. Vertical erosion is least during the youthful stage.
• D. The speed of water is less at the mature state as compared to the old stage.

Answer 1

The correct option is B Depositional landforms are mostly formed in the old stage of a river.

Rivers generally originate from higher altitudes and flows to lower altitudes. During youth stage vertical erosion is observed more due to the sheer power of the water cutting the rocks. The youth stage is characterised by erosion. During the old stage all eroded materials are deposited forming landforms such as Delta.
The speed of the river is maximum in youth stage, slower in mature stage, slowest in the old age.