Posts Tagged earth’s crust

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Environment, Interesting Facts

The Plate Tectonics

The Plate Tectonics

Plate tectonics refers to the theory widely accepted in the 1960s and 1970s that the earth’s crust and upper mantle are composed of tectonic plates that continually move or drift. This motion can cause earthquakes in various magnitudes and trigger volcanic activities.  During major earthquakes the seafloor also moves and can generate huge ocean waves […]

March 15, 2011 No Comments / Read More >>