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]
Figure: Movement of carbon through t 7;t vw+fb3m.l:lygt3 xrqbi8 he carbon cyc dtz dp(qcyns8hb - q74,zuc4,le
[Source: Saff, K. (2008, May 30). File
cycle-cute diagram.jpeg. Wikipedia Commons. Retrieved July 30, 2023, from https ://commons.wikimedia.org/wiki/File
.svg. Copyright free]
Distinguish between transfers and transformations of carbon on the diagram of the carbon cycle.What is I. and II.?
A. Transfer ;Transformation
B. Transfer ;Transfer
C. Transformation ;Transformation
D. Transformation ;Transfer
参考答案: A
本题详细解析:
A transfer of matter from one store to another occurs cn pe0/ 90pnrlzd.s; qacv bag8e1y(9when the chemical makeup of t bre8yn.ns ac 9d1 ( 09cpv0q/elpza;ghe matter is unchanged. In example I, $CO_2$ is dissolving into the ocean, which just means it is mixed in between the water molecules.
A transformation of matter occurs when there is a chemical change occurring in the matter. In example II,$CO_2$ is taken apart and transformed into glucose during the process of photosynthesis.
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