❓ 题目 According to the passage, what is a key reason why some scientists oppose the formal recognition of the Anthropocene as a new geological epoch?
- A. A. The proposed markers are not found in all regions at the same time.
- B. B. Human activities have not caused significant changes to Earth systems.
- C. C. The International Commission on Stratigraphy has rejected the proposal.
- D. D. The Anthropocene is too similar to previous epochs to be considered distinct.