The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch defined by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were delineated by natural climatic shifts or biological events, the Anthropocene is characterized by markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels. However, the formal recognition of this epoch remains contentious. Critics argue that human influence, while profound, lacks the global stratigraphic distinctiveness required for a formal geological boundary. Proponents counter that the unprecedented scale and synchrony of human-induced changes justify a distinct epoch, urging a redefinition of humanity's role in planetary history.
❓ Según el pasaje, ¿cuál es la razón principal de la controversia en torno al reconocimiento formal del Antropoceno?
A. A. Los marcadores propuestos, como la lluvia radiactiva nuclear y la contaminación por plásticos, son demasiado recientes para conservarse en los registros geológicos.
B. B. Algunos científicos creen que el impacto humano no cumple con los criterios para un límite estratigráfico distintivo.
C. C. El concepto del Antropoceno desafía la clasificación tradicional de las épocas geológicas basada en eventos naturales.
D. D. No hay evidencia suficiente de cambios inducidos por el ser humano a escala global para respaldar una nueva época.
✅ 正确答案
B. Some scientists believe that human impact does not meet the criteria for a distinct stratigraphic boundary.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
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