Cameroon GCE advanced level June 2026 geology 2

Posted on June 8, 2026 by T- frank

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(a) Discuss the processes by which River Sanaga erodes and transports its load. (8 marks)
(b) The table below shows the particle size (mm) and percentage weight of samples A and B.

- (i) Draw a histogram for Sample A. (4 marks)
- (ii) Establish a cumulative frequency curve for Sample B. (5 marks)
- (iii) Suggest the environment of formation of Sample B. (2 marks)
(c) Discuss the following terms:
- (i) Sphericity;
- (ii) Roundness;
- (iii) Maturity. (6 marks)

(Total = 25 marks)

(a) Define the following terms as used in Astrogeology:
- (i) Asteroids;
- (ii) Meteors;
- (iii) Comets. (6 marks)
(b) Discuss the composition and physical properties of the:
- (i) Crust;
- (ii) Mantle;
- (iii) Core. (12 marks)
(c) Draw and label a typical seismometer that detects vertical seismic vibrations. (7 marks)

(Total = 25 marks)

(a) Explain how bonding in minerals influences their physical properties. (6 marks)
(b) Differentiate between the following:
- (i) Crystal zone and crystal axis;
- (ii) Parameters of a crystal and Miller Indices;
- (iii) Crystallographic axis and axis of symmetry. (9 marks)
(c) Classify crystals into crystal systems based on the diagnostic symmetry elements of the respective holosymmetric classes. (10 marks)

(Total = 25 marks)

(a) Distinguish between the heave and throw of a fault. (4 marks)
(b)
- (i) What do you understand by metamorphic facies?
- (ii) Outline the facies of contact and regional metamorphism. (8 marks)
(c) Briefly describe the hydrological cycle. (7 marks)
(d) Outline the impacts of landslides on the livelihoods of Cameroonians. (6 marks)

(Total = 25 marks)

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