Which is/are the important raw material(s) required in cement industry?
A. Gypsum and Clay
B. Clay
C. Limestone and Clay
D. Limestone
Answer: Option C
Solution (By Examveda Team)
The important raw material(s) required in cement industry Limestone and Clay.This Question Belongs to General Knowledge >> General Science
Gypsum is required for increase the fixing rate. hence it is not important. therefore i think ans is "c".