❓ Câu hỏi According to the passage, which of the following is a chief reason why some scientists oppose formally defining the Anthropocene as a geological epoch?
- A. A. The markers proposed for its identification are not found globally.
- B. B. Human impacts are too recent and brief compared to typical epoch boundaries.
- C. C. The term has become too popular among the general public.
- D. D. There is no evidence of significant human effects on Earth's systems.