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प्रश्न
Differentiate between active dormant and extinct volcanoes.
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उत्तर
Active volcanoes go on erupting magma continuously e.g. stromboli (North of Sicily). Dormant volcanoes erupt in accidental intervals e.g. Mt. Vesuvius in Italy. Extinct volcanoes stop eruption forever. e.g. Mt. Fujiyama in Japan.
संबंधित प्रश्न
Give one example of volcanic mountains.
What is a volcano?
Give one example of an active volcano.
Name two types of landforms made by volcanoes. Give an example of each type.
What are known as Shield volcanoes?
How are hot springs formed?
Match the Following:
| Column A | Column B |
| 1. Vent | (a) An active volcano |
| 2. Extinct | (b) Hot water fountain |
| 3. Geyser | (c) Dead Volcano |
| 4. Mt. Stromboli | (d) An opening in the earth's crust through which lava flows. |
| 5. Cinder Cone | (e) A volcanic landform. |
Fill in the blank below:
The molten rock that reaches the surface of the earth is called ______.
Fill in the blank below:
The Circum-Paciflc Belt is also called ____________.
Explain the various parts of a volcano.
Name the three belts where volcanoes are found.
Describe the materials thrown out during volcanic eruption.
What is a geyser?
Name a well known geyser.
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 :
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.
Describe the distribution of volcanoes in the world.
OR
Name the important belts of volcanoes.
______ Volcano is known as light house of Mediterranean Sea.
Choose the odd one
Give an example of extinct volcano.
Describe the classification of volcanoes based on the eruptions.
Choose the odd one.
Stromboli, Helens, Hawaii, Fujiyama
