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Closer Look Questions
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Seismic Tomography



1

How is a seismic tomography assembled?
2

How is seismic tomography different from a medical CAT scan?

Measuring Plate Movement



3

How did the Apollo astronauts contribute to our understanding of plate tectonics?
4

How have astronomical observatories used reflected laser light to measured plate movement?
5

How fast is the moon pulling away from the earth?







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