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Volcanoes are usually formed as a result of
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Asked 9/15/2010 2:41:55 PM
Updated 7/20/2014 9:11:41 AM
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User: Volcanoes are usually formed as a result of

Weegy: Volcanoes are formed by the accumulation of magma (molten rock that forms below a planet's surface). Magma can erupt through volcanic vents. As magma forms, it rises and accumulates in underground reservoirs before it erupts onto the surface. [ With each eruption, the erupted material adds another layer to the growing volcano. ]
rdsa77|Points 8461|

User: The seven continents used to be one huge supercontinent called

Weegy: Pangaea (also spelled Pangea or Pang a) is a theoretical supercontinent that existed about 250 million years ago. Scientists believe all seven continents as they are today were once part of a supercontinent and have slowly moved apart. ]
Expert answered|MoStWaNteD|Points 1502|

User: The seven continents used to be one huge supercontinent called

Weegy: Pangaea
Expert answered|MoStWaNteD|Points 1502|

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Asked 9/15/2010 2:41:55 PM
Updated 7/20/2014 9:11:41 AM
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Volcanoes are usually formed as a result of magma accumulating under pressure at destructive (compressional) and constructive (tensional) plate boundaries and then suddenly being erupted due to plate movement.

Added 7/20/2014 9:11:41 AM
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Added 7/20/2014 9:25:01 AM
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