Answer:
Plant root hairs help to absorb carbon dioxide from the soil.
Explanation:
In a plant, the root absorbs water nutrients and mineral salts from the soil and transports them upwards to other parts of a plant through the xylem and phloem vessels.
The roots do not absorb carbon dioxide since carbon dioxide is found in air and the roots are buried beneath the soil surface. The leaves absorb carbon dioxide through openings in leaves called stomata.
Hence the answer.
