Which rock type makes up approximately 90% of the Earth's crust.
A) sedimentary
B) metamorphic
C) igneous

Name: Which rock type makes up approximately 90% of the Earth's crust. A) sedimentary B) metamorphic C) igneous
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Igneous rocks make up 90% of the Earth's crust. The majority of these rocks are formed from the solidification and crystallization of magma or lava. Sedimentary rocks make up a smaller portion, around 5%, and metamorphic rocks make up the remaining 5%.

Which Rock Type Makes Up Approximately 90% of the Earth's