Waec Model Questions Vol1 2020 Geography Question 37
Practice objective / multiple choice question 37 from the 2020 Waec Model Questions Vol1 Geography examination.
A sedimentary rock sample is composed of 55 % quartz, 30 % feldspar, 10 % mica and the remaining 5 % accessory minerals by volume. The densities are: quartz 2.65 g cm⁻³, feldspar 2.55 g cm⁻³, mica 2.80 g cm⁻³ and accessory minerals 3.00 g cm⁻³. Assuming the percentages represent volume fractions, calculate the average density of the rock (to two decimal places).
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This is Waec Model Questions Vol1 2020 Geography Question 37. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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