❓ 题目 According to paragraph, what is a primary reason critics oppose the formal classification of the Anthropocene as a geological epoch?
- A. Human impacts on Earth are not significant enough to leave a permanent record.
- B. The stratigraphic signatures of human activity are not synchronous across the globe.
- C. Nuclear fallout from atomic tests is not a reliable indicator of human influence.
- D. The term 'Anthropocene' is too closely tied to cultural and historical narratives.