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प्रश्न
How the theory of plate tectonics has explained the formation of mountains like Himalaya or Alps and of the volcanic islands.
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उत्तर
The formation of the highest mountains of Himalayas and Alps have been created by the bucking up of the geosynclines of Tethys sea between Angaraland and Gondwanaland which pushed towards each other and forced the geosynclines to be lifted up forming the mountains. The Mid-Atlantic Ridge is the proof of the edge raised at the joint of continental plates which gives birth to several volcanic islands.
संबंधित प्रश्न
Give an example each of conical volcano and fissure volcano.
What is‘magma’?
What is the following:
Mud volcanoes
Distinguish between the following pair of terms associated with vulcanicity:
Laccolith and Lapolith
Distinguish between the following pairs of terms associated with the crustal movement of the earth:
Tilted Block mountains and Lifted Block mountains
Answer the following:
Some volcanoes erupt explosively.
Answer the following:
Some volcanoes develop parasitic cones.
Answer the following
The vent of a volcano when blocked results in an explosive eruption.
Give one word for the following :
The region where there are highest number of geysers and hot springs.
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.
