Gce Model Questions Vol1 2017 Geography Question 6

Practice essay / theory question 6 from the 2017 Gce Model Questions Vol1 Geography examination. This question covers Rocks, Geology .

Gce Model Questions Vol1 2017 Geography Essay / Theory
Topics: Rocks Geology
Question 6 GCE_MODEL_QUESTIONS_VOL1 • 2017 • GEOGRAPHY • essay

Three rock samples have been collected from different locations on the Jos Plateau. Their physical characteristics are described below. Sample I: Dark‑coloured, fine‑grained, exhibits conchoidal fracture, feels greasy, and has a hardness of 7 on the Mohs scale. Sample II: Light‑coloured, coarse‑grained, shows visible interlocking crystals, has a gritty feel, and a hardness of 6.5. Sample III: Medium‑coloured, contains visible fragments of quartz and feldspar set in a fine matrix, is porous, and has a hardness of 3. Answer the following questions:

Question Parts

( a )
Identify the type of each rock (Sample I, II, III) and explain the reasoning based on the described properties.
( b )
For each identified rock, describe the geological processes that led to its formation on the Jos Plateau.
( c )
Considering their physical properties, recommend which rock would be most suitable for use as a road‑base material and justify your choice.

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About This Question

This is Gce Model Questions Vol1 2017 Geography Question 6. It is one of the essay questions from the 2017 Gce Model Questions Vol1 Geography examination.

The question covers Rocks, Geology .

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