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 demarcated by natural events such as ice ages or asteroid impacts, the Anthropocene is characterized by markers like radioactive isotopes from nuclear tests, plastic pollution, and elevated carbon dioxide levels. However, scholars debate its formal recognition, arguing that human influence began thousands of years ago with agriculture, not just in the mid-20th century. This disagreement highlights the challenge of defining a time boundary when human activities have been gradual yet globally pervasive.
❓ ¿Cuál es la razón principal del debate sobre el reconocimiento formal del Antropoceno como una nueva época geológica?
A. A. Los marcadores del impacto humano no son detectables en los registros geológicos.
B. B. Los científicos no se ponen de acuerdo sobre cuándo comenzó significativamente la influencia humana en la Tierra.
C. C. La época es demasiado reciente para ser estudiada por los geólogos.
D. D. Las actividades humanas no han afectado los ecosistemas de la Tierra a nivel global.
✅ 正确答案
B. Scientists disagree on when human influence on Earth began significantly.
IELTS Reading Tips
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