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KUCTE NEDUMANGAD

ATHIRA.SSOCIAL SCIENCEREGISTER NO:13983015

VOLCANOES

Volcanoes are caused when molten rock (magma) flows out into the earth’s surface through fissures

that are caused due to the movement of plates.

DEFINITION

The fissures through which the magma comes out from the asthenosphere on to the crust of earth is known as the vent

The funnel shaped depression that can be seen on the summit of a volcanoes is known as a crater

TYPES OF VOLCANOES

Active volcano

ACTIVE VOLCANOES Those that frequently erupt

e.g.: Mount Etna in Italy Mount Fujiyama in Japan

DORMANT VOLCANOES

Those that have erupted

earlier and not active in the

recent past.But can become

active.E.g.Vesuvius in Italy

EXTINCT VOLCANOES

Active at a time. But will not erupt again.

E.g.Kilimanjaro in Africa

Areas are rich in mineralsBlack soil found here is suitable for cotton cultivationHot springs founded here are supposed to have healing propertiesAlso these places have been developed as well known tourist spots

USES OF VOLCANOES

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