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❓ 문제 According to the passage, why do some critics oppose making the Anthropocene a formal geological epoch?

A. A. Because human impacts are not globally synchronous enough.
B. B. Because the term mixes geological time with social or historical concepts and may lack a clear, lasting rock boundary.
C. C. Because the Anthropocene has no markers such as radionuclides or plastics.
D. D. Because the International Commission on Stratigraphy has already rejected the proposal.

B. Because the term mixes geological time with social or historical concepts and may lack a clear, lasting rock boundary.

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