A. The mineral elements will not be absorbed by the plant unless they are dissolved in its root.
B. The woody stems contain more water than the leaves.
C. Air existing around the leaf is found to be saturated.
D. Only part of the carbon dioxide in the plant is synthesized.
35. This passage is mainly about _____.
A. the functions of carbon dioxide and water
B. the role of water in a growing plant
C. the process of simple sugar formation
D. the synthesis of water with carbon dioxide
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