Volcanoes are caused by molten rock flowing out of fissures in the Earth's surface created by the movement of tectonic plates. There are three types of volcanoes: active volcanoes that frequently erupt, like Mount Etna and Mount Fujiyama; extinct volcanoes that were once active but will not erupt again, such as Kilimanjaro; and dormant volcanoes that erupted in the past but are not currently active, though could erupt again, including Vesuvius.

4. Volcanoes are caused when molten rock flows
out on to the earth’s surface through fissures
that are caused due to the movement of
plates.

5. VOLCANOES

6. ACTIVE EXTINCT DORMANT
Those that frequently
erupt. Eg: Mount Etna
in Italy, Mount
Fujiyama in Japan
Active at a time.
But will not erupt
again. Eg:
Kilimanjaro in
Africa
Those that have
erupted earlier and
not active in the
recent past. But can
become active. Eg:
Vesuvius in Italy