Q93
Which of the following rock has formed the Earth's crust?
A.
Igneous
AnswerB.
Metamorphic
C.
Sedimentary
D.
Carbonate
Answer: Option A
Solution
Answer: Option A
Solution:
Igneous rock has formed the Earth's crust. Most of the Earth's Crust is formed of Sial and Sima i.e. (Silica, Aluminium and Silica Magnesium) composition. Both of thes rock types are granitic in nature being of igneous formation (origin).