State any two characteristics of barchans.

State the difference between weathering and denudation.

Give a geographical reason for each of the following:

(i) Erosion is the dominant activity of a river in its upper course.

(ii) Landforms of deposition are more prominent in the middle course of a river.

(iii) All the rivers do not form deltas.

Describe the work of wind erosion and state two important landforms of wind erosion.