Show:
volcanos
100
a poket of magma
all volcanics have what
200
If its magma is low
A volcano erupts quietly if what????
300
The magma is high!!
A volcano erupts explosively if what??
400
Geolosists often use what to describe a volcano
active dormant extinct
500
the force of the expanding gases puches magam from the magma chamber though the pipe until it flows or explodes out of the vent :)
when a volcano erupts what happens