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25 March, 07:37

Why does magma rise from depth to the surface of the earth?

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  1. 25 March, 09:16
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    Any rock will melt once it reaches a high enough temperature. This liquid rock is known as magma when it is beneath the crust of the Earth. If it bubbles to the surface and pushes its way out, it is known as lava. This happens most often in a volcano.

    Magma rising from the depth occurs when hot mantle rock rises to shallower depths in the Earth because it is less dense than surrounding rock and because the weight of the overlying rock creates pressure that squeezes magma upward.
  2. 25 March, 09:39
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    Answer

    Magma is less dense compared to the surrounding rock.

    the overlying rock creates pressure which forces the magma to be directed upward.

    Explanation:

    at high temperatures the magma is liquid form with the high energy which causes the formation of bonds and the pressure build up creates the increase channeling of the liquid. as the temperature decreases the magma moves into the surface
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