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प्रश्न
What is a volcano?
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उत्तर
A volcano is a vent or an opening in the earth’s crust through which hot magma erupts from deep below the surface. The opening is usually circular in form.
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संबंधित प्रश्न
Write an answer to the following question in your own words.
Explain the effects of a volcano.
The narrow pipe through which magma flow out is called a ______.
Magma rises to the surface and spreads over a vast area is known as ______.
Write a note on Barren Island.
What are the causes of Volcanic Activity?
If the crater of a volcano is of great size and is shaped like a basin, it is called a ______.
People who study volcanoes are called ______.
Barren Island is situated in the ______.
Consider the following statement and choose the appropriate answer:
Statement 1: When magma rises slowly to the surface and spreads over a vast area. It is known as a fissure eruption
Statement 2: The viscosity of lava is determined by the amount of silica and water in magma.
Consider the following statement and choose the appropriate answer:
Statement 1: Many volcanoes of Mexico and Central America are cinder-cone volcanoes.
Statement 2: Shield volcano is also called a stratovolcano.
