Which one of the following industries uses limestone as a primary raw material?
Answer
Cement Industry
The correct answer is Cement Industry — Identify that limestone is crushed and heated with other materials to form clinker, making it the main raw material for the cement industry.
Step-by-step solution
- Recall the raw material requirements of major manufacturing industries.
- Cement production requires heavy and bulky raw materials including limestone, silica, alumina, and gypsum.
- Identify that limestone is crushed and heated with other materials to form clinker, making it the main raw material for the cement industry.
Common mistake: Confusing limestone with bauxite, which is the primary ore used in aluminium smelting.
Concept tested: Classification of industries by raw materials
Published · How this solution was prepared and checked
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