本题目来源于试卷: Human Population Carrying Capacity，类别为 IB环境系统与社会
[单选题]
Figure: Earth Oversh 9; lw:kjy- kv eg oi5n*7p/vnx j2mv5q due dira(z ): pe6xrzx o2y/5,kr-d:doot Day
Earth Overshoot Day marks the date when humanity's demands on the planet in terms of natural resources exceed the natural replacement rate of those resources. In 2023 it was on August $2^{nd}$.
Suggest possible reasons for the trend observed in the Figure.
I.
The human population is growing.
II.
The human population is becoming wealthier on average and is able to afford a lifestyle with a higher consumption of goods.
III.
Humans have damaged many ecosystems.
A. Only I
B. Only I and II
C. Only II and III
D. I, II and III
参考答案: D
本题详细解析:
There is considerable debate on this issue, b7y1ea8ju-2 wc:q; ofklswbw:ut there is evidence for all three causes listed above. If more humans are on the planet, with each human consuming resources, together we will use more resources. We see that when people become wealthier, they consume more resources. Finally, we have damaged many ecosystems to such an extent that they cannot provide some of the valuable ecosystem service8jq-1:ce2uw7s; w lb y:oakwfs we rely on and cannot regenerate quickly enough to recover from our resource extraction.
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