Neco 2017 Geography Question 15

Practice objective / multiple choice question 15 from the 2017 Neco Geography examination.

Neco 2017 Geography Objective / Multiple Choice Medium Difficulty
Question 15 NECO • 2017 • GEOGRAPHY • objective

A rock sample is analysed and found to contain \(45\)% quartz, \(30\)% feldspar, \(15\)% mica and the remaining mineral is amphibole. (i) What percentage of the rock is amphibole? (ii) Based on its mineral composition, classify the rock as igneous, metamorphic or sedimentary.

Answer Options

A. Amphibole = 20%; Rock type = igneous
B. Amphibole = 15%; Rock type = sedimentary
Correct Answer C. Amphibole = 10%; Rock type = metamorphic
D. Amphibole = 5%; Rock type = igneous
Correct Answer
C
Correct Option:
Amphibole = 10%; Rock type = metamorphic

About This Question

This is Neco 2017 Geography Question 15. It is one of the objective questions from the 2017 Neco Geography examination.

Difficulty level: Medium .

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