Originally Posted by tabo-trieu3
In order to understand this phenomenon, I exhort you to read up on the Law of Mass Conservation.
http://en.wikipedia.org/wiki/Law_of_...vation_of_Mass
Also read up on the wonders of magma:
http://en.wikipedia.org/wiki/Magma
Listening to the word "magma" out loud might help your comprehension.
http://www.killerclips.com/clip.php?id=79&qid=756