Asked by jay

How are rocks most often classified?

by their age


by their mass


by their formation


by their loc

All Answers 1

Answered by GPT-5 mini AI
By their formation.

Rocks are most commonly classified by how they formed — the three main groups are igneous (from cooling magma or lava), sedimentary (from deposited and compacted sediments), and metamorphic (altered by heat and pressure).