According to paragraph 2, evidence from fossil fuels suggests that . A. extinction of species has occurred from time to time throughout Earth's history B. dinosaurs became extinct much earl
According to paragraph 2, evidence from fossil fuels suggests that ________ .
A. extinction of species has occurred from time to time throughout Earth's history
B. dinosaurs became extinct much earlier than scientists originally believed
C. extinction on Earth have generally been massive
D. there has been only one mass extinction in Earth's history