Where does the word volcano come from?
The word volcano originally comes from the name of the Roman god of fire, Vulcan.
How is a volcano formed?
A volcano is a land form (usually a mountain) where molten rock erupts though the surface of the planet.
How does a volcano erupt?
In simple terms a volcano is a mountain that opens downward to a pool of molten rocks (magma) below the surface of the earth.
How does the gas erupt?
It is a hole in the earth from which molten rock and gas erupt.
How any volcano is there?
There are more then 1500 active volcanoes on earth.
How do u know if there is 80 or more under the oceans?
We currently know of 80 or more which are under the oceans.
How does the lava slowly poor conductor of the heat?
Lava cools slowly because lava is a poor conductor of heat.
What is pumice?
Pumice is a light, porous volcanic rock that forms during explosive eruptioms.