Q64
Which of the following rocks has the highest porosity?
A.
Pumice
AnswerB.
Granite
C.
Gneiss
D.
Slate
Answer: Option A
Solution
Answer: Option A
Solution:
Pumice is a highly porous volcanic rock formed by the rapid cooling of frothy lava.It contains many gas bubbles, making it lightweight and very porous.Correct Answer: Pumice.