❓ 题目 According to the passage, which of the following is a reason why some scientists oppose formalizing the Anthropocene as a geological epoch?
- A. A. The markers of human impact are not as distinctive as those of natural epochs.
- B. B. Human influence on the environment has been ongoing and varied across different regions and times.
- C. C. The proposed start date of the mid-20th century is too recent to be geologically significant.
- D. D. The term 'Anthropocene' is too scientific and not widely understood by the public.