In the middle course of a river the gradient is gentle so the flow of the river slows down such that it appears like a snake over its floodplains forming which of the following?

1. Deltas
2. Gorges
3. Meanders
4. Rapids

…………… are moon-shaped dunes.

1. Dunes
2. Sand Dunes
3. Barchan
4. Seifs

The lowering of land, rounding of exposed rock surfaces and levelling of the peaks:

1. Denudation
2. Erosion
3. Mass wasting
4. Deposition

Assertion (A): In the lower course of the river all the ideal conditions for depositional landforms exist.

Reason (R): The load-transporting capacity is drastically reduced due to sluggish flow as well as division of a river into many distributaries.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.