Magmas Rise to Shallower Depths and Intrude the Crust or Extrude

Magmas rise to shallower depths and intrude the crust or extrude on the surface because ________.

A) of buoyancy, the magmas are hotter and less dense than the surrounding rocks where they form
B) of centrifugal and tidal forces as the Earth spins
C) the pressure at depth is so great that the magmas are forced upwards
D) earthquakes shake the crust and allow the magma to escape upwards

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