❓ Question According to the passage, which of the following is a reason why the Anthropocene has not been formally recognized as an epoch by the ICS?
- A. A. The term was proposed by a Nobel laureate rather than a geologist.
- B. B. There is disagreement over the epoch's starting date.
- C. C. The evidence for human impact is insufficient and unclear.
- D. D. The concept is only used in social sciences, not in geology.