Answers

2016-07-07T10:40:27+08:00
It's the gradual movement of the crustal plate- forward or backward and somehow like sliding.
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2016-07-07T19:06:56+08:00
It is a theory that states that land masses were once connected as a giant continent called Pangaea. They later on moved apart from each other caused by the convection current movement in the mantle. It gradually moves either away or towards each other. (please click my THANKS for effort XD)
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