Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 2 (Q.No. 10)
10.
The rock generally used for roofing, is
granite
basalt
slate
pumice.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 3 of 3.

Ankit said:   7 years ago
Yes, right @Govind.

Vivek kumar shukla said:   7 years ago
What is pumice?


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