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... Volcanoes are mountains, but they are very different from other mountains; they are not formed by folding and crumpling or by uplift and erosion. Instead, volcanoes are built by the accumulation of their own eruptive products. ... Geologists generally group volcanoes into four main kinds--cinder cones, composite volcanoes, shield volcanoes, and lava domes. ... When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt(explode). ... Such efforts can be and have been successful, but are of limited use in a large-scale eruption
There are more than 500 active volcanoes (those that have erupted at least once within recorded history) in the world, not counting those that lie beneath the sea.
Approximate Word count = 452
Approximate Pages = 1.8
(250 words per page double spaced)
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