The major rocks of Earth's crust are classified into principal types based on
A)element composition.
B)mineral composition.
C)the manner in which they formed.
D)relative and absolute locations.
E)age and structure.

Question

Quizplus · Accepted Answer

The major rocks of Earth's crust are classified into principal types based on the manner in which they formed. This includes igneous rocks formed from solidification of magma, sedimentary rocks formed from the accumulation and lithification of sediments, and metamorphic rocks formed from the alteration of pre-existing rocks due to heat and pressure. While element and mineral composition, location, age, and structure may be used as additional criteria for classification, they are not the primary basis for classification.

The Major Rocks of Earth's Crust Are Classified into Principal