Q
The relative abundance of three types of rocks ( igneous-metamorphic- sedimentary) in the earth’s crust is_________?
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A
A. 12.5 % -12.5 % – 75%
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B
B. 64.7 % – 27.4 % – 7.9 %
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C
C. None of a & b
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D
D. 7.9% – 27.7 % – 64.4
Correct Answer:
B. B. 64.7 % – 27.4 % – 7.9 %
