Original Project
Matter and Energy in Living Systems
Item ME112005: The carbon dioxide used by plants comes from the air.
Which of the following statements is TRUE about the carbon dioxide that is used by plants?
- It is combined with oxygen to make sugar molecules.
- It is absorbed through the roots of plants.
- It comes from the air.
- It is food for plants.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 2051 |
6–8 n = 946 |
9–12 n = 1098 |
Male n = 981 |
Female n = 1030 |
English n = 1784 |
Other n = 213 |
||
| A. | It is combined with oxygen to make sugar molecules. | 22% | 21% | 22% | 21% | 23% | 22% | 20% |
| B. | It is absorbed through the roots of plants. | 17% | 19% | 15% | 16% | 17% | 16% | 24% |
| C. | It comes from the air. | 43% | 41% | 44% | 45% | 41% | 44% | 34% |
| D. | It is food for plants. | 19% | 19% | 19% | 19% | 19% | 19% | 22% |