4. Where is the energy source found that drives the processes that form igneous and metamorphic rocks? (1 point)

Question

4.   Where is the energy source found that drives the processes that form igneous and metamorphic rocks?  (1 point)

hana88 · Answer

you should probably ask the science section

anonymous · Answer

The internal heat of the Earth, which (1) keeps the interior of the Earth molten (liquid), and (2) drives convection currents that move molten rock around the mantle.  These enormous currents of lava cause plate tectonics, volcanoes, earthquakes, and the creation of new rock at the mid-ocean ridge and its retirement at the subduction zones.

anonymous · Answer

If you're asking where the internal heat of the Earth comes from, in part it's just leftover from when the Earth collapsed out of a big dust and gas cloud, so it came from the conversion of gravitational potential energy to heat during those collisions.  In part it comes from the radioactive decay of uranium and thorium.