The various sedimentary rocks such as conglomerate and sandstone are identified by
A)mineral composition.
B)hardness.
C)degree of compaction.
D)particle size.

Question

Quizplus · Accepted Answer

Conglomerate and sandstone are both sedimentary rocks that are identified by their particle size. Conglomerate consists of rounded fragments larger than 2 millimeters, while sandstone consists of sand-sized particles that range from 1/16 to 2 millimeters. Mineral composition and hardness can vary greatly within each type of sedimentary rock, and degree of compaction is a factor in the formation of all sedimentary rocks, but it is not a reliable method for identifying them.

The Various Sedimentary Rocks Such as Conglomerate and Sandstone Are