Neco Model Questions Vol1 2023 Geography Question 32
Practice objective / multiple choice question 32 from the 2023 Neco Model Questions Vol1 Geography examination.
A rock sample contains \(55\%\) quartz, \(20\%\) feldspar, \(15\%\) mica and the remainder accessory minerals. A rock is classified as granite when the quartz content is between \(20\%\) and \(60\%\) and the feldspar content exceeds \(15\%\); otherwise it is classified as diorite. Determine the rock type. If the rock is used to produce \(1\) m\(^3\) of aggregate and each cubic metre requires \(2.6\) tonnes of rock, calculate the mass of quartz in the aggregate (in tonnes, to two decimal places).
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About This Question
This is Neco Model Questions Vol1 2023 Geography Question 32. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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