every 100 years roughly
Yes, they often erupt again.
It depends, a volcano can erupt once and never erupt again. Or, a volcano can erupt multiple times a day.
Never.
Very varied. Some erupt every few decades, some are dormant for centuries.
As many as it wants. Some volcanoes erupt often, some infrequently
Mt.vesuvius does errupt often. hope this helped!
Not too often XD :D C===3
normally, only once a year! not very often.
every 2 years
There are no volcanoes in the Grand Canyon.
Krakatoa erupts about 14 times a year.
they arupt 2 a year