At the End of the Cretaceous (K/T Boundary)what Unusual Geologic

question 14

Multiple Choice

At the end of the Cretaceous (K/T boundary) what unusual geologic phenomenon occurred that has been linked to mass extinction and the end of the dinosaurs?

• A)A 10 kilometre diameter meteor impact occurred on the Yucatan peninsula.
• B)Enormous outpourings of basaltic lavas built the Rocky Mountains in British Columbia.
• C)The climate abruptly warmed and massive weathering of iridium poisoned the seas
• D)Dinosaurs were hunted to extinction by Klingons.

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