1.

Crushing strength should be greater than ___________ for a good structural stone.

A. 10 kg per cm<sup>2</sup>
B. 100 kg per cm<sup>2</sup>
C. 1000 kg per cm<sup>2</sup>
D. 10,000 kg per cm<sup>2</sup>
Answer» D. 10,000 kg per cm<sup>2</sup>


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