题目
题目

Climate Action - PtX Carbon quiz

多项选择题

These statements are related to carbon cycle. Which of them is/are true?(Image: flickr.com, CC BY-NC-SA 2.0)

选项
A.a. Rain forests capture about 70% of all the CO2 emissions.
B.b. The oceans have a large role in capturing the CO2 from atmosphere.
C.c. Volcanoes emit annually more CO2 than what is caused by human activities.
D.d. CO2 is no longer stored to soil crust and rocks.
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标准答案
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思路分析
Diving into the Carbon Cycle statements, we need to assess each option's accuracy based on how CO2 moves between atmosphere, oceans, biosphere, and lithosphere. Option a: 'Rain forests capture about 70% of all the CO2 emissions.' This overstates the role of rain forests. While forests sequester a substantial amount of CO2 through photosynthesis and storage in biomass and soils, th......Login to view full explanation

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