Draw a well labelled diagram to show the process of physical weathering.

Describe chemical weathering mentioning the processes involved in it.

Give a geographical reason for each of the following:

(i) Biological weathering is also known as organic weathering.

(ii) Vegetation prevents disintegration of rocks.

(iii) Chemical and biological weathering is negligible in polar climates.

Describe the chief characteristics of weathering in different climates.