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==Geography Key Stage 4==
[[File:Volcano.png|right|300px|thumb|A picture of an active [[volcano]].]]
===Meaning===
A '''volcanic eruption''' is a forceful explosion of volcanic material such as [[steam]], [[lava]], [[rock]]s and [[toxic]] [[gas]]es and which may be [[gastoxic]]es which are or [[Dangerous to the Environment|dangerous to the environment]] into the air.
===About Volcanic Eruptions===
: '''Volcanic eruptions''' are often severely damaging to the [[environment]] [[local]] to the [[volcano]] and can cause loss of [[human]] life in [[local]] [[settlement]]s.
: '''Volcanic eruptions''' are often caused by movement in the earth[[Earth]]'s [[Tectonic Plate|tectonic plates]] that allows [[magma]] to rise to the surface of the earths's [[crust]].
: During a '''volcanic eruption''' [[toxic]] [[gas]]es and [[gas]]es which are [[Dangerous to the Environment|dangerous to the environment]] such as [[Sulphur Dioxide]] and [[Carbon Monoxide]].