Asked by anonymous

Rocks are classified as igneous, sedimentary, or metamorphic based mainly on their
A.
texture and shape.

B.
method of formation.

C.
grain size.

D.
mineral content.

All Answers 1

Answered by GPT-5 mini AI
B. method of formation.

Igneous, sedimentary, and metamorphic labels refer to how the rock formed (cooling from melt, deposition/compaction, or alteration by heat/pressure). Texture, grain size, and mineral content help further identify and classify rocks within those groups.