Plate Tectonics (Tabat)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Where would you most likely find evidence of earthquakes throughout Earth's history? | along fault lines
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| What idea does NOT provide evidence for continental drift? | the oceanic plate theory
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| What did Wegener think the one large continent was called? | Pangaea
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| What is the discovery that supports the idea of fossils of the same age and from the same species found on two different continents? | continental drift theory
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| Where has evidence for sea-floor spreading come from? | magnetic minerals on the ocean floor
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| Where does sea-floor spreading take place? | mid-ocean ridges
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| What is a boundary? | the area where two tectonic plates meet
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| What is a convergent boundary? | a boundary that is formed when plates collide
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| What is a divergent boundary? | a boundary that is formed when plates separate
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| What is a transform boundary? | a boundary that is formed when plates slide past each other
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| What have magnetic reversals helped to support? | sea-floor spreading
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| What do plate tectonics support? | the vast majority of earthquakes and volcanic activity in the world occurs along plate boundaries
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| What will landmasses splitting apart most likely cause? | a greater diversity in animal populations
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| If elephants are native to Africa and Asia, what would best explain why elephants are not native to India? | India broke away from Africa 20 million years ago
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| What idea supports continental drift? | fossilized remains of the same plants and animals are found on different continents
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| What type of rock is most closely associated with volcanic activity, plate tectonics & sea-floor spreading? | igneous rock
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| Why was Wegener's Continental Drift Theory not widely accepted by scientists of his time? | He couldn't explain how the continents could move horizontally. He was also a meteorologist, not a geologist.
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| How are magnetic stripes on the ocean floor formed? | Magma wells up at mid-ocean ridges; magma cools; minerals in the igneous rock line up with the magnetic poles creating a striped symmetrical pattern
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| Why are magnetic stripes on the ocean floor significant? | it provides support for theory of sea floor spreading
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Created by:
masonteach
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