❓ 题目 According to the passage, what is a primary obstacle to officially defining the Anthropocene as a new geological epoch?
- A. A) The lack of agreement on whether human impacts are significant enough
- B. B) The difficulty in identifying a clear stratigraphic marker that records the change
- C. C) The opposition from industrialized nations to accepting responsibility
- D. D) The absence of evidence for a 'Great Acceleration' in the mid-20th century