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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.

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7mo ago

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

because of the high pressure


Magma from deep inside earth rises toward the surface because?

Magma from deep inside the Earth rises toward the surface because of its lower density compared to the surrounding rocks, creating buoyancy forces that drive the magma upwards. Additionally, the pressure from gases within the magma can also contribute to its ascent.


What provides the force that causes magma to erupt to the surface?

The force that causes magma to erupt to the surface is primarily due to the build-up of pressure from the expansion of gases within the magma chamber. As the pressure exceeds the strength of the surrounding rock, the magma forces its way through the crust to reach the surface, resulting in an eruption.


Why does magma come to the surface?

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


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.


What builds during a dormant volcano?

Pressure and magma build up beneath the surface of a dormant volcano. This buildup can result in an eruption if there is a sudden release of pressure or new magma intrusion into the volcano's system.


Magma tends to rise toward earths surface?

Yes, magma tends to rise towards the earth's surface. It does so because once melted it becomes less dense.


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


What causes magma to flow out of a weak spot in the earths crust?

Magma flows out of a weak spot in the Earth's crust due to the build-up of pressure from the molten rock beneath the surface. This pressure can result from the heat and movement of tectonic plates, creating pathways for magma to rise and eventually erupt onto the surface as lava.


How does the magma rise from the volcano?

magma rises up out of a volcano by the build up of pressure


Why does Magma tends to rise toward the Earth's surface?

Magma rises from the asthenosphere to the surface of the Earth. After it reaches temperature upward to 1000 degrees Fahrenheit, the magma starts to rise. Gases also aid in pushing the magma toward the surface, along with the tremendous pressure from the depth at which it originates.


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

cuz