What most likely caused the Cretaceous mass extinction?
A) a volcano
B) a flood
C) an earthquake
D) an asteroid
Correct Answer:
Verified
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Q9: When was 2,4-D first identified?
A) in 1940
B)
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Q11: What determines gender in jacky dragons?
A) sunlight
B)
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Q15: What was the main reason for the
Q16: What was the main reason for the
Q17: Which term refers to a species of
Q18: Which term refers to a species that
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