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

Question

What rock is most likely to be formed from compacted shells and skeletons?​
A) ​coal
B) ​limestone
C) ​rock salt
D) ​marble
E) ​granite

Quizplus · Accepted Answer

Limestone is primarily made up of the compressed shells and skeletons of marine organisms such as coral and mollusks. Coal is formed from organic matter that has been compressed and heated over time, rock salt is formed from the evaporation of saltwater, marble is formed from metamorphosed limestone, and granite is formed from the solidification of magma.

What Rock Is Most Likely to Be Formed from Compacted