Which of the following describes a rock?
A) a pile of damp sand still holding the form of a bucket
B) a collection of crystals that fit together like puzzle pieces
C) cobblestones cemented together to form a walkway
D) a layer of mud at the bottom of a dry riverbed

Question

Quizplus · Accepted Answer

A rock is typically composed of minerals or a combination of minerals that fit together like puzzle pieces to form a solid, cohesive mass. Option B best describes this composition.

Answer: C
 Rock can also be made up of larger fragments that are cemented together, like cobblestones used to make a walkway. Option C best describes this type of rock.

Which of the Following Describes a Rock