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Natural Phenomenon

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What are Volcanoes? Volcanoes look a lot like mountains but they are quite different. A volcano is a mountain that opens downwards to storage of molten rock deep underneath the Earth’s surface. The top of a volcano opens up like a hole (or vent) where the molten lava rises through and reaches the earth’s surface. This is what we term as a  Volcanic Eruption . (source: qknowbooks) A volcanic eruption is the escaping of molten rock through a rupture in a mountain on to the Earth’s surface. Clouds of ash and lava are seen coming out of a Volcanic eruption. Volcanic eruptions can completely clear out its surroundings. There are 3 stages of volcano: a.      Active Volcano; recently erupted volcano which can erupt again. b.      Dormant Volcano; a volcano that has not been erupted in a long time but can erupt again c.       Extinct Volcano: one that erupted 100 or 1000 years ago and can never erupt again. Why do volcano erupt? Earth is made up of