❓ 题目 According to the passage, which of the following is a major criticism of formalizing the Anthropocene as a geological epoch?
- A. A. Its markers are not found in any sedimentary layers.
- B. B. It fails to account for nuclear fallout as a significant marker.
- C. C. It lacks a clear and consistent starting point.
- D. D. It overemphasizes the role of developing nations in environmental change.