❓ 質問 According to the passage, which of the following is a reason some critics oppose the formal recognition of the Anthropocene as a geological epoch?
- A. Human impacts are not as widespread as those of natural glacial cycles.
- B. The markers of human activity are not uniformly distributed or simultaneous across the globe.
- C. Radioactive isotopes and microplastics are not durable enough for stratigraphic analysis.
- D. The concept has been primarily used for political purposes rather than scientific inquiry.