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Because magma is less dense than surrounding solid rock, so it is forced upward toward the surface.

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12y ago

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Why does magma deep inside the earth rise toward the surface?

because of the high pressure


Why does magma from deep inside Earth rise toward the surface?

cuz


How magma moves upward though a volcano and reaches the surface during an eruption?

The inside of the earth (Mantle) pushes the hot magma liquid and makes the magma move toward the surface.


Why does pressure in magma build up as it rises toward the surface?

Pressure in magma builds up as it rises toward the surface because the weight of the overlying rock increases, causing the magma to be squeezed and pressurized. This pressure can eventually lead to volcanic eruptions.


Could property of magma that cause it to be forced upward towards earth surface?

Because magma is less dense than the surrounding solid rock, it is forced upward toward the surface. When magma reaches the surface and flows from volcanoes, it is called lava.


Why does magma come to the surface?

Magma is less dense than the surrounding rock; as such, it will rise toward the surface.


How magma reaches the surface?

Magma sometimes flows toward the surface as a result of convection currents in the magma, that is to say, the hotter magma rises within cooler magma. Because it is so hot, the rising magma simply melts away anything in its path, so nothing can prevent it from reaching the surface.


Hot melted rock inside the earth is called?

The molten rock inside the Earth is called magma. When magma reaches the surface, it is called lava.


How does magma reaches the surfaces?

Magma sometimes flows toward the surface as a result of convection currents in the magma, that is to say, the hotter magma rises within cooler magma. Because it is so hot, the rising magma simply melts away anything in its path, so nothing can prevent it from reaching the surface.


What may happen to magma that does not reach earth surface?

It dries then if other magma goes in the same direction as the old magma it sometimes reheats it then it flows toward the surface


How does magma change the earth surface?

When magma erupts on to the earth's surface it hardens and forms new land.It depends on if your talking about magma or lava, lava is on the surface of the Earth and magma is inside (underground).


How does lava leave a volcano?

Magma inside Earth is under a lot of pressure, so it will tend to flow toward the lower pressure at the surface. Additionally, gasses dissolved in the magma bubble out of the magma as it approaches the surface, like bubbles from a freshly opened can of soda. As the gases expand they forces some of the molten rock out of the volcanic vent.