Compléter Fill in the Blanks: Drifting ContinentsVersion en ligne Test your knowledge on the theory of drifting continents and plate tectonics! par Lcda. Alondra Garcia 1 supercontinent surface evidence drifted Alfred Wegener drift mountain continental geologists 300 landmass Wegener's Pangea landmass German continents climate idea fossils 1910 pulls fossil explanation In , a scientist named became curious about why some look as though they could fit together . hypothesis was that all the continents were once joined together in a single and have since apart . Wegener's idea that the continents slowly moved over Earth's became known as . According to Wegener , the continents were joined together in a or single , about million years ago . Wegener called the supercontinent . Land features on the continents such as ranges and coal fields provided Wegener with for his hypothesis . He also used to support his hypothesis for continental drift . A is any trace of an ancient organism that has been preserved in rock . Wegener also used evidence of change to support his hypothesis . Wegener could not provide a satisfactory for the force that pushes or the continents . Because he could not identify the cause of continental drift , most of his time rejected his .
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