Which of the Following Is Not a Piece of Evidence

question 116

Multiple Choice

Which of the following is not a piece of evidence supporting the idea that an impact caused the mass extinction that occurred 65 million years ago?

• A)Grains of quartz formed under high pressure are found in a layer of clay that dates to 65 million years ago.
• B)Unusually large abundances of iridium and other rare metals are found in a layer of clay that dates to 65 million years ago.
• C)A large impact crater along the coast of Mexico dates to 65 million years ago.
• D)Fossilized dinosaur bones contain fragments of rock from the impact.

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