❓ 题目 According to the passage, what is a primary reason some scientists oppose formalizing the Anthropocene as a geological epoch?
- A. A. Human impacts are not spatially and temporally consistent enough to define a single global marker.
- B. B. The 'Great Acceleration' occurred too recently to be measured in geological strata.
- C. C. Radioactive isotopes are not durable enough to serve as stratigraphic markers.
- D. D. The term 'Anthropocene' fails to account for natural processes like glacial deposits.