Which rock having specific gravity lower than water & sponge like?
A. Granite
B. Pumice
C. Gabbro
D. Breccia
Answer: Option B
Solution(By Examveda Team)
Pumice is a rock having a specific gravity lower than water and sponge.Specific gravity refers to the ratio of a solid or liquid to the density of water at 4 degrees Celcius.
Pumice is a pyroclastic igneous rock. It is extremely porous, with a foamy appearance. The specific gravity of pumice is found to be 0.95.
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