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Physics, 24.09.2020 05:01 essie10

Walter and Luis Alvarez hypothesized that an asteroid impact caused the formation of a 66- million-year-old layer of clay containing high levels of iridium. How did geologists test this hypothesis? What evidence did they look for?

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Walter and Luis Alvarez hypothesized that an asteroid impact caused the formation of a 66- million-y...

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