Answers

2016-06-19T20:55:41+08:00
Plate tecĀ·tonĀ·icsnouna theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
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2016-06-22T11:16:13+08:00
A theory explains that the outermost rigid layer of earth called plates are continously moving. this theory also explains the cause of formation of mountains,volcanoes,trenches and earthquakes.
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