Shield volcanoes erupt least violently cinder cone most violently and compost can erupt either way.
No. Most volcanoes have built up into mountains.
No. Volcanoes erupt.
Some do. Most volcanoes will erupt more frequently than that, but some do go 1000 years or more between eruptions.
About 60 volcanoes erupt each year.
An unlimited amount of volcanoes can erupt at once
Volcanoes can erupt at any time of year.
Volcanoes can erupt in any climate. Climate does not affect a volcano's ability to erupt.
Active volcanoes erupt. Dormant volcanoes are quiet - but may erupt again some day. Extinct volcanoes have "closed up shop" for good, and will never erupt again.
Composite volcanoes usually do not erupt mafic material. Intermediate material is the most common. The mafic material they do erupt is usually basalt.
Yes, they are.
Ash and Gas make composite volcanoes erupt i believe