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 of a tree . what it Input ，Outp ,i+xluqjs25b u u 8yvn +g2h0*v .wlm *h.whgpbt ，Both input and out *gynhwpv2b+* w.u8hl .0vmgh put？
Identify the inputs and outputs of matter and energy for a tree.
I. Water
II. Sunlight
III. Heat
IV. $CO_2$
V. O2
A. I, II, III and IV, V ,none
B. II ,III ,I, IV and V
C. II and V, III and IV, I
D. II and IV ,V ,I and III
参考答案: B
本题详细解析:
The process of photosynthesis requires sunf m:,wv1gppk (light, $CO_2$and water and produces glucose and $CO_2$.
The process of respiration requires glucose and $CO_2$ and produces $CO_2$, water and heat. The process of evapotranspiration is the release of water from the leaves. Therefore all matter enters and exits the plant while sunlight enters and heat (as waste) exits the plant.
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