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153****2826 · 2024年10月04日

知识点在哪里?

NO.PZ2024010503000015

问题如下:

Which of the following statements about CO2 is most accurate?

选项:

A.CO2 levels are the highest they have been in over 800,000 years.

B.About 10% of CO2 emissions from the 17th century onward occurred in the last 30 years.

C.Agriculture and land-use changes account for the highest share of CO2 emissions.

解释:

A is correct. Atmospheric carbon dioxide (CO2) is at levels not seen over the past 800,000 years. More than half the CO2 emissions (as opposed to 10%) from the late 17th century onward have occurred in the last 30 years. It is the burning of fossil fuels rather than agriculture and land use changes that cause the highest share of CO2 emissions.

请帮助解释此题各项选择

1 个答案

pzqa38 · 2024年10月08日

嗨,爱思考的PZer你好:


您好,此题涉及众多知识点,在讲义中作为例题有呈现,我帮您找出来相关截图。

A和B选项都是在解析中呈现的知识点,麻烦记一下

C选项是源于下面这张图

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