A) From air through the tiny pores in the leaf.
B) From the soil through the roots of the plant.
C) As a result of respiration within the leaf.
D) From water vapour in the air.
Correct Answer: B
Solution :
Roots absorb water from soil. The stem conducts water to all parts of the plants and leaves through vessels. This water is used by the leaves to synthesise food during photosynthesis.
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