题目
多项选择题
For which of the following planetary boundaries has the threshold of acceptable risk been transgressed?
选项
A.a. Air quality
B.b. Ocean acidification
C.c. Climate change
D.d. Biogeochemical cycles
E.e. Ozone depletion
F.f. Loss of biodiversity
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标准答案
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思路分析
The question asks which planetary boundaries have had their threshold of acceptable risk transgressed. The provided correct selections are climate change, biogeochemical cycles, and loss of biodiversity, so we will evaluate every option accordingly.
Option a. Air quality
This boundary concerns atmospheric pollutants and health impacts, but within the planetary boundaries framework, air quality is not listed as one of the transgressed boundaries in the same way as climate change or biodiversity. If anything, air quality issues can be ......Login to view full explanation登录即可查看完整答案
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