Question

When lava cools quickly on the Earth's surface, it forms 'X'. 'X' is a very light rock used as body scrubber and to polish floors.
Identify 'X' in the above given paragraph.

A

Gneiss

B

Pumice

C

Basalt

D

Shale

Medium

Solution

verified
Verified by Toppr
Correct option is
B

Pumice

Pumice is a type of volcanic rock, produced when lava with a very high content of water and gases is discharged from volcano. Pumice is a very light rock which is used as body scrubber and to polish floor.

Was this answer helpful?

upvote 0
downvote0