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... Most people thought his theory was nonsense and part of the problem was because Wegener couldn’t explain how the continents might move, so most of the people still believed in sunken bridges leading to the oversea lands. ... Plate movement is caused by convection currents that are produced by heat within the Earth’s inner core. ...
One of the key to plate tectonics was the magnetic field of the Earth. ... Since the magnetic poles have changed or reversed positions with one another due to plate movement 170 times in the last 80 million years, the magnetic particles in a solidified rock become markers. ... As plates get pushed together, the heavier plate often gets pushed beneath the lighter one; this is called subduction. ...
The Theory of Plate Tectonics explains how our world came to what it is today.
Approximate Word count = 814 Approximate Pages = 3.3 (250 words per page double spaced)
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