Paulo makes the argument that the asteroid strike that likely contributed to the extinction of the dinosaurs was a short-tem environmental change because it happened so quickly.

The asteroid struck quickly, but the environmental changes it caused lasted much longer. The impact led to lasting effects, such as changes to the climate and habitats, that contributed to the dinosaurs’ extinction. So Paulo is incorrect to call it short-term just because the strike itself happened quickly; the correct choice is “He is incorrect; it caused long-term changes.”

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