❓ 题目 According to the passage, which of the following is a major reason why the formal recognition of the Anthropocene as a distinct epoch is controversial?
- A. Scientists cannot agree on whether human activities have any lasting impact on geology.
- B. There is disagreement about the appropriate starting point for the proposed epoch.
- C. The term was popularized by a non-geologist, which undermines its scientific validity.
- D. Plastic pollution and nuclear isotopes are not detectable in sediment cores.