❓ 题目 According to the passage, why do some researchers oppose the formal recognition of the Anthropocene as a new geological epoch?
- A. A. Because human activities are not yet global enough to affect Earth's systems.
- B. B. Because the markers of human activity may not be sufficiently distinct or durable in the rock record.
- C. C. Because nuclear fallout and plastic pollution are not detectable in geological strata.
- D. D. Because the Industrial Revolution did not leave any significant geological markers.