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प्रश्न
Explain the various parts of a volcano.
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उत्तर
A volcano represents some typical parts e.g. the molten rock or magma mostly lava makes the conical body of a volcano. Magma chamber is the source of erupting magma. Vent is the main channel through which the magma erupts outwards. Crater is the mouth or uppermost part of a volcano which is a big hole from which magma erupts and spreads all over.
संबंधित प्रश्न
Name the three types of volcanoes on the basis of the frequency of their eruption.
What are known as Shield volcanoes?
Fill in the blank below:
The Circum-Paciflc Belt is also called ____________.
Which volcano is known as the ‘lighthouse of the Mediterranean?
Name the three belts where volcanoes are found.
Indicate the world distribution of active volcanoes.
Distinguish between :
Seismology and Volcanology.
Distinguish between :
Volcanic Dust and Volcanic Ash.
Describe the effect of volcanic eruption of Karakatoa in 1883.
What is a geyser?
Give two of its main characteristics of Geysers
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
Answer the following:
Plate margins are zones of great volcanic activity.
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 large sill of acid lava which has solidified gradually giving a dome-like shape.
Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
Which four of the following words are connected with volcanic activity:
Karst, crater, drumlin, stalactite, gully, potholesl, ash, basalt, swallow, holes, dyke, domes, bluffs.
An example for active volcano is ______.
Choose the odd one
Give an example of extinct volcano.
Name the three types of volcanoes based on periodicity of eruption.
Choose the odd one
An active volcano, Dormant volcano, Extinct Volcano, Shield volcano
Choose the odd one
Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
