Science Class 5 Other

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

Which igneous rock is used by dentists for polishing of teeth?

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Answer: B. Pumice

The correct answer is B) Pumice.
Pumice is a very light and porous igneous rock formed from frothy volcanic lava. Dentists use it in a finely powdered form for polishing teeth

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