In 1912, Alfred Wegener proposed the theory of continental drift, stating that all the continents were once joined together and slowly moved apart. However, his theory was not widely accepted in his time. In 1962, the discovery of sea floor spreading (sea floor being forced apart by the formation of new crust) eventually led to a more modern and widely accepted theory of plate tectonics. Why did the theory of plate tectonics improve upon Wegener’s theory of continental drift?

The plate tectonics theory considers that the earths lithosphere has a large number of plates that have been slowly moving for billions of years.  Alfred Wegener's theory of continental drift makes sense because fossils of the same type of animal has been found on different continents. Those animals couldn't of just appeared on each continent so earths crust must of been together at one point and seperated by plate tectonics.

Explanation:

answer: round and dynamic.

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intonation based on rhythm.