Continental Drift
Continental Drift
Continental Drift: A revolutionary new theory about Earth was proposed in 1912. In that year, the German meteorologist and geophysicist Alfred Wegner (1880-1930) claimed that the continents were once connected to each other. He called the large landmass ,Pangaea, and concluded due the continents somehow have separated and drifted across the oceans. His theory was called continental drift.
Wegner based his conclusions on two main observation. The first observation was that the continents seemed to fit together like a saw. The second observation was that fossils of the same prehistoric species were found is continents that were a long way apart. He could see no way that the organisms could cross the oceans to reach all of these places.
Instead, he thought that the continents themselves had shifted. As they shifted took the fossils with them. Wegner rearranged the continents, joining them so that the distribution of the fossils matched up across the continents.
At the time, few scientists agreed with Wegner's theory. There was no way of measuring whether the continents were moving or not. Also, no mechanism was known that would explain how huge continents could move. Wegner died in 1930, before the discovery of new evidence that would prove him correct.
Which of the following is the observation made Wegner ___________ | |||
| Right Option : C | |||
| View Explanation |
The theory of continental drift is given by _______________ | |||
| Right Option : B | |||
| View Explanation | |||
The book written by Alfred Wegner was ________________________ | |||
| Right Option : B | |||
| View Explanation | |||
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