Question

Which rock will float in water?
Fermice
Obsidian
basalt
Granite

Answer 1

pumice stone

The volcanic rock is called 'pumice stone' and is very lightweight, meaning it can float on water. Pumice is made when magma from a volcano cools really quickly in water

Step-by-step explanation:

Hope this helps!

Answer 2

If you meant pemice in the first option, then that is your answer.