NO.PZ2022072901000007
问题如下:
Which of the following is not an example of a proposed planetary boundary?
选项:
A.Freshwater use. B.Loss of coral reefs. C.Ocean acidification. D.Stratospheric ozone depletion.解释:
九个地球边界:空气污染,臭氧层消耗,气候变化,海洋酸化,化学污染,生物地球化学循环改变(磷和氮负荷),淡水取水,土地系统变化,生物圈完整性丧失。
同上