(a) With the aid of a labelled diagram, discuss three internal structures of the earth.


(b) State four importance of the surface layer of the earth's crust.

(a) Discuss igneous rocks under the following headings:

i Mode of formation

(a) Define climate.

(b) With the aid of diagrams, explain the following types of rainfall:

i Convectional
ii Cyclonic


5. (a) With the aid of diagrams, describe how the following features are formed:

i Caldera


ii Asymmetrical fold


iii Composite volcano


(b) State four features of intrusive volcanicity.