Although it is relatively common, limestone is an economically important rock type because its major constituent mineral,__________ , is used in the production of ________.
A) calcite; cement
B) halite; halogen
C) halite; salt
D) calcite; calcium

Question

Quizplus · Accepted Answer

Limestone is primarily composed of the mineral calcite, and one of the major uses of calcite is in the production of cement. Therefore, option A (calcite; cement) is the correct answer. Options B and C are incorrect because halite refers to the mineral form of salt, not calcite. Option D is partly correct as calcite is the main component of limestone but calcium alone does not have a significant industrial use.

Although It Is Relatively Common, Limestone Is an Economically Important