Gce Model Questions Vol1 2020 Geography Question 6

Practice essay / theory question 6 from the 2020 Gce Model Questions Vol1 Geography examination. This question covers Rocks, Rock cycle, Economic geology .

Gce Model Questions Vol1 2020 Geography Essay / Theory

Topics: Rocks Rock cycle Economic geology

Question 6 GCE_MODEL_QUESTIONS_VOL1 • 2020 • GEOGRAPHY • essay

A field survey in the Jos Plateau recorded three distinct rock types with the following characteristics: 1. Coarse‑grained, light‑coloured rock composed mainly of quartz, feldspar and mica; visible crystals are interlocking. 2. Medium‑grained, reddish‑brown rock consisting of sand‑sized particles cemented together; contains occasional shell fragments. 3. Dark, fine‑grained rock that is dense and vesicular; it contains basaltic phenocrysts. Answer the questions that follow.

Question Parts

( a )

Identify each rock type (1, 2 and 3) and state its classification (igneous, sedimentary or metamorphic).

( b )

Explain how each of the three rocks could be transformed into another rock type through processes of the rock cycle.

( c )

Describe how the weathering of basalt contributes to soil fertility in a tropical savanna environment.

( d )

Evaluate the economic importance of granite in Nigeria’s construction industry, mentioning at least two factors that affect its utilisation.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Gce Model Questions Vol1 2020 Geography Question 6. It is one of the essay questions from the 2020 Gce Model Questions Vol1 Geography examination.

The question covers Rocks, Rock cycle, Economic geology .

View More Gce Model Questions Vol1 2020 Geography Questions More Gce Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support