The word Volcano is
derived from Roman word Vulcan which means God of Fire. When the core (the most
inner/central part of the earth) gets heated up and it is not able to survive
its heat in itself then the energy which is within the core would come out towards
the surface by means of Piper. When it comes out it explodes and this explosion
is known as Volcano. The explosion could be in form of Gas, Liquid or Solid
matter.
Causes
of Volcanic Activity:
(i) Internal Heat: as discussed above
(ii) Radio Activity which is present within
the earth.
(iii) Contraction of the earth surface:
(iv) Plate Tectonics: (Discussed in
Divergent and Convergent Boundaries).
Structure
of Volcano:
The hot liquid that is
within the earth is known as Magma and the exact place where it
is stored is known as Magma Chamber. The Magma rises up
from the inner core and the mental, and this occurs through the opening which
is known as Vent. The Magma reaches from core to crest through a Pipe. The top of the crest from where the Magma comes
out is known as Crater. Once the magma comes out from crater it is known as Lava.
Benefits
of Volcano:
·
Tourism:
·
Mineral comes out:
·
Ashes cause fertile plains, better for
agriculture.
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