BYU Earth Science Unit 1 questions with correct answers

BYU Earth Science Unit 1 questions
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with correct answers |\ |\




Wegener found coal in which country and claimed that this
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supported his ideas about continental drift. What country and
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how did he claim that it supported the idea of continental drift? -
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CORRECT ANSWERS ✔✔He found coal in Greenland. Coal is a
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product of jungles, so at one point Greenland must have been
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closer to the equator where jungles could thrive.
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How did Wegener's theory explain evidence of the Permo-
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Carboniferous ice-age era that peaked some 280 million years |\ |\ |\ |\ |\ |\ |\ |\ |\


ago, was scattered over almost half the Earth, including the
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hottest deserts? - CORRECT ANSWERS ✔✔Because according to
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Wegener's theory, Africa, Antarctica, Australia, and India had
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once comprised a Southern Hemisphere supercontinent
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(Gondwanaland) centered around the south pole, and therefore |\ |\ |\ |\ |\ |\ |\ |\


felt the effects of the ice age
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Who has presented a similar theory to Wegener's in 1910 -
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CORRECT ANSWERS ✔✔The American geologist Frank Taylor
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What did Alfred Wegener call the original large landmass that
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was part of his continental drift theory? - CORRECT ANSWERS
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✔✔Pangea

, What evidence did Wegener need to convince scientists of his
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continental drift theory? - CORRECT ANSWERS ✔✔A strong |\ |\ |\ |\ |\ |\ |\ |\


enough force that could move the continents
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Explain Wegener's theory of continental drift. - CORRECT
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ANSWERS ✔✔Wegener proposed that earth began with one giant
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landmass that slowly broke into what we now know as continents
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Scientists claim that the ocean floor has magnetic patterns. Why
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does this support the theory of plate tectonics? - CORRECT
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ANSWERS ✔✔Magnetic patterns are symmetrical on each side of
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the mid-ocean ridge, which would indicate that the seafloor is
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spreading apart like the tectonic plate theory claims
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How do we know that the seafloor is not old? - CORRECT
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ANSWERS ✔✔If it were old, it would have a large build-up of
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sediment


How do earthquake and volcano patterns support the idea of
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plate tectonics? - CORRECT ANSWERS ✔✔They are typically
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located on plate boundaries, and result from plates interacting
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with each other.
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Why did scientists expect the ocean floor to have a thick layer of
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sediment? - CORRECT ANSWERS ✔✔They believed that dirt
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washing from land into the ocean for billions of years would
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create a thick layer of sediment.
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