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state the two causes of volcanic eruption is two advantages
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advantages:
They helped cool off the earth removing heat from its interior. Volcanic emissions have produced the atmosphere and the water of the oceans. Volcanoes make islands and add to the continents. Volcanic deposits are also used as building materials.
Explanation:
causes:
When the mantle rock gets close to the surface, the pressure decreases. The decrease in pres- sure causes the mantle rock to melt, forming magma. The magma rises through the rift zones and erupts. ... Lava that flows from undersea rift zones produces volcanoes and mountain chains.
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