Which of the following rocks is most likely to be formed from compacted shells and skeletons?
A) coal
B) limestone
C) rock salt
D) marble
E) granite

Question

Quizplus · Accepted Answer

Limestone is typically formed from the compaction and cementation of shells and other skeletal remains of marine organisms. Coal is formed from the remains of plants, rock salt is formed from the evaporation of saltwater, marble is formed from the metamorphism of limestone, and granite is a type of igneous rock formed from magma cooling below the Earth's surface.

Which of the Following Rocks Is Most Likely to Be