Which of the following is not considered a plausible hypothesis for the causes of mass extinctions?

Question

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Competition among organisms is not considered a plausible hypothesis for the causes of mass extinctions because it does not explain why entire groups of organisms would go extinct rather than just certain species within a group. This hypothesis also does not account for the rapid nature of mass extinctions. All of the other options are considered plausible hypotheses for the causes of mass extinctions.

Which of the Following Is Not Considered a Plausible Hypothesis