Neco Model Questions Vol1 2017 Geography Question 50

Practice objective / multiple choice question 50 from the 2017 Neco Model Questions Vol1 Geography examination.

Neco Model Questions Vol1 2017 Geography Objective / Multiple Choice Medium Difficulty
Question 50 NECO_MODEL_QUESTIONS_VOL1 • 2017 • GEOGRAPHY • objective

A rock sample is composed of 40\% quartz, 30\% feldspar, 20\% mica and 10\% other minerals by volume. During metamorphism, 5\% of the quartz volume is transformed into coesite and 10\% of the feldspar volume is transformed into garnet, while mica remains unchanged. What are the new percentage compositions of quartz, coesite, feldspar, garnet, mica and other minerals in the rock?

Answer Options

A. Quartz 40%, Coesite 5%, Feldspar 30%, Garnet 10%, Mica 15%, Other 0%
B. Quartz 38%, Coesite 2%, Feldspar 30%, Garnet 2%, Mica 20%, Other 8%
Correct Answer C. Quartz 38%, Coesite 2%, Feldspar 27%, Garnet 3%, Mica 20%, Other 10%
D. Quartz 35%, Coesite 5%, Feldspar 30%, Garnet 0%, Mica 20%, Other 10%
Correct Answer
C
Correct Option:
Quartz 38%, Coesite 2%, Feldspar 27%, Garnet 3%, Mica 20%, Other 10%

About This Question

This is Neco Model Questions Vol1 2017 Geography Question 50. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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