Biology, 04.12.2020 02:40, ayoismeisalex

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? PlZ I NEED THIS LIKE RIGHT NO WI MARK BRAINLIES

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