Who had presented the continental theory ?

Alfred Wegener
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Who first propounded the theory of continental drift and when?

Alfred Wegener in 1912 first of all propounded the theory of continental drift.
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What was Pangaea according to Wegener?


According to Wegener, all the continents formed a single continental mass, a mega ocean surrounded by the same. The super-continent was named Pangaea, which meant all earth.
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Mention the major plates of the earth.

The major plates are as follows :

(i) Antarctica and the surrounding oceanic plate

(ii) North American (with western Atlantic floor separated from the South American plate along the Caribbean islands) plate

(iii) South American (with western Atlantic floor separated from the North American plate along the Caribbean islands) plate

(iv) Pacific plate

(v) India-Australia-New Zealand plate

(vi) Africa with the eastern Atlantic floor plate

(vii) Eurasia and the adjacent oceanic plate.

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Periodic change in the position of magnetic pole.

Polar wandering.
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