THE EARTH
VOLCANOES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lava texture
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Lava composition
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Both (a) and (b)
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None of these
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Detailed explanation-1: -Volcanoes are classified as active, dormant, or extinct. Active volcanoes have a recent history of eruptions; they are likely to erupt again. Dormant volcanoes have not erupted for a very long time but may erupt at a future time. Extinct volcanoes are not expected to erupt in the future.
Detailed explanation-2: -When magma is ejected by a volcano or other vent, the material is called lava. Magma that has cooled into a solid is called igneous rock.
Detailed explanation-3: -► Volcanic Domes (Lava Domes) Volcanic domes are steep-sided accumulations of highly viscous lavas that dome up after eruption from a vent instead of flowing laterally to form a lava flow. Illustration showing a cut away view of a lava dome and its magma conduit.