I want to hike a volcano but not sure if its dangerous. Do you know anything about them?
A volcano is a rupture of the Earth's crust and hot lava, ash and gases escape when it erupts. It's extremely dangerous.
Do you think it would be safe to hike up one?
I wouldn't because if the Lava or molten rock generated by geothermal energy is expelled you will be in big trouble.
How are they actually formed?
They occur because the Earth's crust gets broken into 17 major, rigid tectonic plates and they float on hotter and softer layers in the mantle.