47.1k views
3 votes
Which is the best definition for the term rock?

A. A rock is made of one or more minerals that have been cemented, squeezed and heated, or melted and cooled together.
B. A rock is made of a single mineral that has been weathered to become hard. C. A rock is a solid or liquid that forms from the breakdown of minerals. D. A rock is a substance that has luster, cleavage, magnetism, and can scratch other rocks.

User Jade Ellis
by
8.8k points

2 Answers

2 votes
i think its B it sounds more right than the others

User Mosey
by
8.1k points
6 votes
The answer is A because minerals are what make up an object, in this case, a rock. And since you asked for a  definition this is the closet because it includes lava rocks and gravel. Also, a rock can be more than one mineral and it doesn't have to be magnetic. Also, it is the build up of minerals, not the breakdown.
User Zell
by
8.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.