本题目来源于试卷: IB ESS Unit 1 Foundations of ESS，类别为 IB环境系统与社会
[单选题]
Figure: Systems diagram vezt+ts(25 k1lkd7 pxlk mjp9-nk-a0of a tre fn/(us euxa72s+ick a6e6ze0 e
Deduce the processes represented by the flows of matter in the Figure.
I.RespirationII. Photosynthesis
III. Evapotranspiration
IV. Absorption
A. I and II only
B. III and IV only
C. I, II and IV only
D. I, II, III and IV
参考答案: D
本题详细解析:
Water, $CO_2$ and sunlight are required for the process of photosynthesis. $CO_2$ is produced during photosynthesis. Heat is produced by the process of respiration in the cells of the tree. Water is absorbed by the root hairs of the tree. Water is transpired from the leaves of the tree through the process of evapotranspiration.Therefore option D is correct.
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