In the third paragraph, the author discusses the role of asteroid strikes in mass extinctions primarily to A
undermine the value of expert judgments offered by paleontologists
B
challenge a generalization made by certain astronomers
с
suggest that volcanic eruptions are more destructive than asteroid strikes
D
explain why volcanic eruptions are more common than asteroid strikes
E
acknowledge the merits of a position that he
In the third paragraph, the author discusses the role of asteroid strikes in mass extinctions primarily to
A
undermine the value of expert judgments offered by paleontologists
B
challenge a generalization made by certain astronomers
с
suggest that volcanic eruptions are more destructive than asteroid strikes
D
explain why volcanic eruptions are more common than asteroid strikes
E
acknowledge the merits of a position that he rejects