❓ 문제 According to the passage, which of the following is TRUE about the Anthropocene's formal recognition?
- A. A. Stratigraphers have officially adopted the Anthropocene as a new epoch because of clear global markers.
- B. B. The lack of a synchronous and uniform boundary layer is one reason why the Anthropocene remains contentious.
- C. C. All scientists agree that the Anthropocene began with the Industrial Revolution.
- D. D. The Anthropocene is characterized by natural markers such as glacial retreats and asteroid impacts.