EARTH SCIENCE
VOLCANOES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Where are volcanoes found?
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How do volcanoes erupt?
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What is lava made from?
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How do volcanoes form in deserts?
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Detailed explanation-1: -A volcano is an opening in the earth’s crust through which lava, volcanic ash, and gases escape. Volcanic eruptions are partly driven by pressure from dissolved gas, much as escaping gases force the cork out of a bottle of champagne.
Detailed explanation-2: -Introduction. The eruption of Surtsey Volcano, in the Vestmannaeyjar (Vestmann Islands), Iceland (1963–67; Fig. 1), is the canonical example of shallow-to-emergent subaqueous explosive volcanism.
Detailed explanation-3: -Surtsey, a volcanic island approximately 32 km from the south coast of Iceland, is a new island formed by volcanic eruptions that took place from 1963 to 1967. It is all the more outstanding for having been protected since its birth, providing the world with a pristine natural laboratory.
Detailed explanation-4: -Etymology. From the name of the mythological giant Surtr and ey (“island”).