Answers

2015-11-10T21:24:14+08:00
-volcano is geologic activities formed when two plates ,oceanic and Continental plates collide each other.
-volcano is the opening in earth's crust. where molten rocks, gases, smoke and ashes are erupted.
two types:
a.) active volcano - a volcano that has erupted last 600 years.
b.) inactive volcano - a volcano that has no record of eruption.

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