The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch, characterized by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were defined by natural climate shifts and biological evolution, the Anthropocene is marked by human-induced changes such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels. Proponents argue that these markers are stratigraphically distinct and will be preserved in the rock record, justifying a formal designation. However, skeptics contend that the term is more cultural than scientific, noting that human activities have altered the environment for millennia, and that the proposed markers may not be globally synchronous. This debate underscores the challenge of defining geological time in an era of rapid planetary change, raising questions about the intersection of science, policy, and human responsibility.
❓ Según el pasaje, ¿cuál es la razón principal por la que los escépticos cuestionan la designación formal del Antropoceno como una época geológica?
A. A. El impacto humano en el medio ambiente ha sido demasiado gradual y uniforme para ser claramente identificado.
B. B. Los marcadores propuestos pueden no ocurrir al mismo tiempo en todo el mundo, y el término puede ser más cultural que científico.
C. C. La lluvia radiactiva y la contaminación por plásticos no son lo suficientemente significativas como para alterar los estratos geológicos.
D. D. El concepto del Antropoceno ya ha sido rechazado por la mayoría de los geólogos debido a la falta de evidencia.
✅ 正确答案
B. The proposed markers may not occur at the same time across the globe, and the term may be more cultural than scientific.
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