Why
(c) Pumice stone is used to scrub feet. Dip it in a bucket of water. Does
it floats or sink? Why?
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Answer:
it sinks because of its weight
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Explanation:
Pumice has a porosity of 64–85% by volume and it floats on water, possibly for years, until it is eventually waterlogged and sinks. Scoria differs from pumice in being denser.
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