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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
Give geographical reason.
Volcanic eruptions can cause earthquakes.
The narrow pipe through which magma flow out is called a ______.
Choose the odd one
The opening of the Volcano is usually ______ in form.
What is Magma?
What is a caldera?
If the crater of a volcano is of great size and is shaped like a basin, it is called a ______.
Volcanoes made of cinder and ash and which have sleep slopes are ______ volcanoes.
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.
