ANSWER ANY THREE QUESTIONS
1a. Explain the term Volcanicity
- Describe the characteristics and mode of formation of any one of the following
(i) Batholith (ii) Dyke (iii) Composite cone
- In what four ways are volcanic rocks important to man?
2a. List three landforms in the upper course of a river valley
- With the aid of diagrams, describe the characteristics and mode of formation of an ox-bow lake
- Explain the following terms: (i) Rotation of the earth (ii) Revolution of the earth (iii) Equinox
3a. State Koppen’s five major climatic groups and their subgroups.
- Outline any two differences between Greek and Koppen’s system of climatic classification
- Discuss the sequence of denudation and four agent of denudation
4a. What is environmental hazards?
- List three examples of environmental hazards
- Explain five ways of preventing desert encroachment
5a. Describe chemically formed sedimentary rocks under the following headings (a) mode of formation (b) examples (c) importance
b. Calculate the temperature at a coastal mountain peak of height 6000m when the temperature at sea levels is 400C.
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