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What are mid-oceanic ridges?...

What are mid-oceanic ridges?

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This forms an interconnected chain of mountain system within the ocean. It is the longest mountain-chain on the surface of the earth though submerged under the oceanic water. It is characterised by a central rift system at the crest, a fractionated plateau and flank zone all along its length. The rift system at the crest is the zone of intense volcanic activity.
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Assertion (A) : Explosive type of volcanic eruptions are associated with the destructive or convergent plate boundaries in which the heavier plate is subducted beneath the lighter pate. Reason (R): Materials of the upper mantle lying below the mid-oceanic ridges are melted and move upward in the form of lava during volcanic eruptions.

Which one of the following plate movements is responsible for the formation of mid-ocean ridge ?

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The Ninety East Ridge is a submarine volcanic ridge located in which ocean?

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Where are deltoid ridge and odontoid process located ?

FULL MARKS-DISTRIBUTION OF OCEANS AND CONTINENTS-ADDITIONAL QUESTIONS WITH ANSWERS (II. Very Short Answer Type Questions)
  1. Which methods that developed in the recent period have facilitated cor...

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  2. What are Abyssal Plains?

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  3. What are Continental Margins?

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  4. What are convection currents?

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  5. What was the condition of India when Pangaea broke? Before that what w...

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  6. How was Himalaya formed?

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  7. How was Deccan Traps formed?

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  8. What was the theory profounded by Alfred Wegener, a German meteorologi...

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  9. What are the different ways in which convergence can take place?

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  10. Who was the profounder of plate tectonic theory? (1) Arthur Holmes (2...

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  11. Who was the profounder of convection currents theory? (1) Arthur Holme...

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  12. According to Wegener, what are the causes of drifting of continents?

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  13. In how many plates has earth been divided according to plate tectonic ...

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  14. Give examples of placer deposits.

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  15. With what is fleeing force related?

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  16. With what is fleeing force related?

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  17. On what basis has continent drifting theory been discarded?

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  18. The ocean floor may be segmented into how many divisions based on the ...

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  19. What are mid-oceanic ridges?

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  20. Which fact helped the scientists to understand plate movement?

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