Multiple Choice
If the hypothesis tracing the extinction of the dinosaurs to an impact is correct, the dinosaurs died off largely because .
A) the impact caused massive earthquakes worldwide
B) radiation from iridium in the asteroid caused the dinosaurs to die of cancer
C) of injuries suffered from direct hits of pieces of the asteroid or comet
D) of global climate effects initiated by dust and smoke that entered the atmosphere after the impact
Correct Answer:

Verified
Correct Answer:
Verified
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