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प्रश्न
What is a volcano?
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उत्तर
A volcano is a vent in the earth’s crust from which fiery hot magma erupts from the earth's interior.
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संबंधित प्रश्न
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
Fill in the blanks with suitable words:
Volcanic activity is a ______ movement.
What is the difference between magma and lava?
What is the difference between a dormant volcano and an extinct volcano?
What is called the Pacific Ring of Fire? Why is it called so?
Fill in the blank below:
The Circum-Paciflc Belt is also called ____________.
Explain the various parts of a volcano.
Which volcano is known as the ‘lighthouse of the Mediterranean?
Name the three belts where volcanoes are found.
In which belt most of the volcanoes of the world are found?
Indicate the world distribution of active volcanoes.
Distinguish between :
Volcanic Dust and Volcanic Ash.
Name a well known geyser.
Differentiate between active dormant and extinct volcanoes.
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
Give reasons for the following:
The Circum-Pacific Belt of volcanoes is called ‘The Ring of Fire’.
Answer the following:
Plate margins are zones of great volcanic activity.
Give one word for the following :
The funnel shaped hollow at the top of a volcanic cone.
Give one word for the following :
The lava which is poor in silica and rich in iron and magnesium.
Give one word for the following :
A volcano which has the possibility of erupting in future.
Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..
What is the following :
Epicentre
Name the three types of volcanoes based on periodicity of eruption.
Distinguish between Active volcano and dormant volcano
How many active volcanoes in the world?
Choose the odd one.
Stromboli, Helens, Hawaii, Fujiyama
