Pumice is the type of extrusive igneous rock that can float on the water because air bubbles are trapped when molten material erupted from an underground volcano. Hence, option B is the correct option.
Igneous Rock- when molten roacks or the material of the molten rocks are solidified igneous rocks are formed.
Intrusive igneous rocks
This type of rock is made by crystallization below the earth's surface. In this process, the large crystals of this rock are formed when slow colling occurs under such conditions. For example diorite and granite.
Extrusive igneous rocks
Extrusive igneous rocks cool down quickly with the contact of the surface by making small crystals. Amorphous glass is an example of this process when the extrusive igneous rocks cool very quickly.
One other example of extrusive igneous rocks is pumice. Pumice contains holes in it where air bubbles are trapped in the molten metal. Due to this holes pumice become so light that it can float in water.
Thus, Pumice is the type of extrusive igneous rock that can float on the water because air bubbles are trapped when molten material erupted from an underground volcano. Hence, option B is the correct option.
For more about the molten metal, follow the link below-
https://brainly.com/question/213052
