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王婆婆 · 2023年06月11日

请翻译

NO.PZ2022120703000017

问题如下:

An analyst argues that a rapid transition from conventional to electric cars would continue to put a strain on natural resources. This would best be explained by:

选项:

A.population growth.

B.the Jevons paradox.

C.the shift in materials used.

解释:

C is correct because one of the aspects related to a further strain on natural resources and their depletion is the result of the shift in materials used in production. "Another aspect is the shift in the resources used. For example: Clean energy technologies generally require more minerals than fossil fuel-based counterparts. An electric car uses five times as much minerals as a conventional car (...)."

A is incorrect because population growth would not be the?most likely?reason behind a strain on natural resources related to rapid transition from conventional to electric cars. Population growth, in general, is listed among the biggest causes of increased pressure on natural resources: "The rising population will put increased strain on the world’s natural resources, most notably in terms of access to food." However, the main source of a strain related to rapid transition of the industry is stemming from the change in resources used and the fact that the new technology requires more of the minerals. "Clean energy technologies generally require more minerals than fossil fuel-based counterparts. An electric car uses five times as much minerals as a conventional car (...)."

B is incorrect because the Jevons paradox is observed when "(...) relative improvements in efficiency (using fewer resources per unit of production) may be offset by increased consumption of a given product." However, switching rapidly production line from conventional to electric cars means using more resources than for fuel-based vehicles (per car produced): "An electric car uses five times as much minerals as a conventional car (...)."

题目里的put strain on resource是什么意思啊?都改成清洁能源了为啥还会对自然资源有限呢


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净净_品职助教 · 2023年06月12日

嗨,爱思考的PZer你好:


简单来说,这种压力缘于效率的提高或材料的转变反而加速了对能源的消耗。也就是C选项概念的含义

最初由于对化石能源的消耗,使得产品出现转型,企业开始转变生产材料,例如发展新能源技术,但是清洁能源技术通常比基于化石燃料的技术需要更多的矿物(例如锂矿资源大量开采,用于做电池)。一辆电动汽车使用的矿物是传统汽车的五倍。所以才有了put strain on natural resources

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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

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