Waec Model Questions Vol1 2023 Geography Question 6

Practice essay / theory question 6 from the 2023 Waec Model Questions Vol1 Geography examination. This question covers Rocks, Igneous rock classification, Rock formation processes, Construction uses of rocks .

Waec Model Questions Vol1 2023 Geography Essay / Theory

Topics: Rocks Igneous rock classification Rock formation processes Construction uses of rocks

Question 6 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • GEOGRAPHY • essay

A geologist collected a rock sample from the northern plateau of Jos. Laboratory analysis gave the following mineral composition by weight: quartz 45 %, feldspar 35 %, mica 10 %, amphibole 5 %, and other minerals 5 %. The rock is coarse‑grained, shows interlocking crystals, and has a porosity of about 2 %.

Question Parts

( a )

Classify the rock (igneous, sedimentary or metamorphic) and give its specific rock name.

( b )

Describe the igneous process (intrusive or extrusive) that most likely formed this rock, citing evidence from the description.

( c )

Assess the suitability of this rock for use as a building stone, considering its mineral composition and physical properties. Recommend one specific construction application.

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About This Question

This is Waec Model Questions Vol1 2023 Geography Question 6. It is one of the essay questions from the 2023 Waec Model Questions Vol1 Geography examination.

The question covers Rocks, Igneous rock classification, Rock formation processes, Construction uses of rocks .

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