THE AUTHOR MENTIONS THE EXTINCTION OF THE DINOSAURS IN PARAGRAPH 2 T...

Câu 30: The author mentions the extinction of the dinosaurs in paragraph 2 to emphasize that . A. the cause of the dinosaurs’ extinction is unknown B. Earth’s climate has changed significantly since the dinosaurs’ extinction C. actions by humans could not stop the irreversible process of a species’ extinction D. not all mass extinctions have been caused by human activity