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How We Proved An Asteroid Wiped Out The Dinosaurs | Big History Project
- What color is the limestone in Italy?
- What is the color of the cretaceous layer?
- What color is the tertiary layer?
- What happened when the dust and debris went into the atmosphere?
- What are other pieces of evidence?
- What year did the oil company discover the impact crater?
- What does the core sample from the crater show?
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