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प्रश्न
Why is volcanic activity often associated with mountain building ?
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उत्तर
Most of the active volcanoes are formed along the fold mountains such as the Himalayas, The Alps, The Andes etc. Fold mountains have been formed by mountain building movements. These involve intense folding and faulting which mark lines of weakness on the surface. Most of the eruptions take place along these lines of weak.
संबंधित प्रश्न
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
What is the difference between magma and lava?
What is the difference between a dormant volcano and an extinct volcano?
Name the three types of volcanoes on the basis of the frequency of their eruption.
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 Circum-Paciflc Belt is also called ____________.
Explain the various parts of a volcano.
In which belt most of the volcanoes of the world are found?
Indicate the world distribution of active volcanoes.
Name a well known 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.
Differentiate between active dormant and extinct volcanoes.
What is the following:
‘Ring of Fire’
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
Give one word for the following :
A volcano which has the possibility of erupting in future.
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
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
Choose the odd one
Name the three types of volcanoes based on periodicity of eruption.
Choose the odd one
An active volcano, Dormant volcano, Extinct Volcano, Shield volcano
