本题目来源于试卷: IB ESS Unit 2: Ecosystems & Ecology，类别为 IB环境系统与社会
[单选题]
State the name of the process that cokpzk/9u ((.dqb 5kh xfjp.m 2hl vs/w/nver; perc2i x 49egu*vex6ts carbon dioxide in the air to carbohye;29vpeix 4gceurx * 6drates.
A. Respiration
B. Photosynthesis
C. Decomposition
D. Transpiration
参考答案: B
本题详细解析:
Photosynthesis (Option B) is the process by :xkh.w :lzutu0u76u; rkgkf7 which carbon dioxide in the air is converted to carbon compounds in green pw xk: . 7gzu f7l:0u;6hktukurlants.
Respiration releases carbon dioxide (Option A), and decomposition by decomposers (Option C) also releases carbon dioxide.
Transpiration is the process by which water is drawn up the stem of a plant to the leaves where it evaporates (Option D) and is not involved directly in the carbon cycle.
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