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प्रश्न
Distinguish between the following pair of terms associated with vulcanicity:
Crater and Caldera
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उत्तर १
| Crater | Caldera |
| The crater is the mouth of a volcano at the top of the vent with a normal outlet. | Caldera is a very large mouth of a volcano which is quite spacious due to the big amount and thrust of the eruption. |
उत्तर २
Crater and Caldera: Crater forms the summit and Caldera the enlarged mouth or the sunken crater at the center of a volcano. When water accumulates in a crater it forms a crater lake and in a caldera a lake like Taba lake of Sumatra. A crater is formed as a result of the overflow of lava and calera as a result of subsidence.
संबंधित प्रश्न
How are volcanoes formed?
Distinguish between the following pair of terms associated with vulcanicity:
Cinder Cone and Composite Cone
Distinguish between the following pair of terms associated with vulcanicity:
Geysers and Hot Springs
Answer the following:
Some volcanoes develop parasitic cones.
Answer the following
The vent of a volcano when blocked results in an explosive eruption.
Give reasons for the following:
Earth as a whole does not expand.
What are tectonic movements? How are these classified?
Distinguish between the following pairs of terms associated with vulcanicity:
Magma and Lava
How the theory of plate tectonics has explained the formation of mountains like Himalaya or Alps and of the volcanic islands.
Assertion (A): The Pacific Ocean includes two thirds of the world’s volcanoes.
Reason (R): The boundary along the Eastern and Western coast areas of the Pacific Ocean is known as the Pacific Ring of Fire.
