volcano is an opening in a planet’s surface make gases and fusible matters go out then it leak on the surface to make hill or a mountains has different parts.
volcano gives different matters:
lava: it’s a fusible rocks became on the surface before being a volcanic rock like basalt
gases and volcanic powdered : sulfur dioxide ,vapor,hydrocarbons
where we can find volcanos?
how volcano happens?
under the surface is very hot what make rocks be fusible then it look for a colder level if it find a opining in the surface the volcano happens