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Volcano Revision

A volcano is a landform that develops around a weakness in the Earth's crust, from which
molten magma, disrupted from pre-existing volcanic rock, and gases are ejected or

Types of volcano:

Central vent type ­ with a single pipe
Fissures - where magma is extruded along a…

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Volcanic landslides
Climate change ­ the ejection of huge quantities of volcanic debris can cause a
change in average global temperatures.

More than 500 million people live in areas at risk from volcanic hazards. Such land
often has richer soils and a better climate than the surrounding region.



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