A volcano that is erupting, or can still erupt, is called _________________.
an active volcano.
20
How many active volcanoes are there in the world?
There are about 1300 active volcanoes in the world.
20
Volcanoes that have not erupted for a long time are called sleeping ,or _________________.
dormant volcanoes
25
How many dormant volcanoes are there in the world.
There are about 1400 dormant volcanoes in the world. (But nearly 1300 are active volcanoes) it is difficult to tell whether a volcano is dormant or extinct.
20
If a volcano hasn't erupted for at least 10000 years it is called ____________________.
