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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
Fill in the blanks with suitable words:
Volcanic activity is a ______ movement.
What is a volcano?
Give one example of an active 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 ____________.
Name the largest active volcano in the world.
Indicate the world distribution of active volcanoes.
Distinguish between :
Volcanic Dust and Volcanic Ash.
Why is volcanic activity often associated with mountain building ?
Describe any three advantages of volcanoes.
What is a geyser?
State two ways in which lava may come out of the earth’s crust giving an example of each type of these volcanic activities.
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 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 large sill of acid lava which has solidified gradually giving a dome-like shape.
Which four of the following words are connected with volcanic activity:
Karst, crater, drumlin, stalactite, gully, potholesl, ash, basalt, swallow, holes, dyke, domes, bluffs.
What are the influences of volcanoes eruption on man?
OR
What is the importance of volcanoes?
OR
Mention adverse and beneficial effects of volcanoes.
What is the following :
Fissure type of volcanoes
What is the following :
Spine or plug
An example for active volcano is ______.
Choose the odd one
Describe the classification of volcanoes based on the eruptions.
Choose the odd one
Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
