what is volcano? what are its type?
Answers
Answer:
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.
There are threetypes of volcanoes:
(i) Shield volcanoes
(ii) Strato volcanoes
(iii) Cinder cones
Explanation:
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A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruption occurs. Gases and rocks shoot up through the opening and spill over or fill the air with lava fragments. Eruption can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Volcano eruptions have been known to knock down the entire forests. An erupting volcano can trigger tsunamis, flash floods, earthquakes, mudflows and rockfalls.