Q178
The majority of Earth's crust is composed of which rock?
A.
Igneous
AnswerB.
Metamorphic
C.
Sedimetary
D.
Carbonate
Answer: Option A
Solution
Answer: Option A
Solution:
Majority of Earth's crust is composed of igneous rock with about 90% of share. The sial & sima i.e. silica alumina & silica magnesium respective are igneous rock types.