The greatest danger? Depends on where you are and which volcano. But I would have to certainly include in the top dangers the danger of heavier than air poisonous gas, which kills all in front of it.
http://en.wikipedia.org/wiki/Plinian_eruption
what is the greatest danger from volcanoes??
a. watery lava
b. mud flows
c. oxygen
d. bulging of the earth's crust
1 answer