What can volcanoes do?

make lava and destroy things

Volcanos can also create lots and lots of ash, and lava and rocks. It can erupt and destroy thousands andeven millions of homes and people. Volcanos are very dangerous. Scientist can also measure some kind of waves and predict when it will erupt, but they are not always right. Like if they are right they will evacuate the area/village around it and volcanos can be small or large sized eruptions!
--Genius [=