❓ 题目 According to the passage, critics argue against formalizing the Anthropocene as an epoch primarily because
- A. A. human-induced changes are too similar to past natural events and lack a globally consistent marker
- B. B. the term was popularized by a chemist rather than a professional geologist
- C. C. the industrial markers are not permanent enough to appear in future sedimentary layers
- D. D. the mid-20th century start date is too recent for any geological correlation