Question

what is the role of stomata in ascent of sap in plant ?​

Answer 1

Answer:

Ascent of sap. The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the crown.The theory is intended to explain how water can reach the uppermost parts of the tallest trees, where the applicability of the cohesion-tension theory is debatable.

Explanation:

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Answer 2

Stomata are pores in the leaf that allow gas exchange where water vapor leaves the plant and carbon dioxide enters. Special cells called guard cells control each pore's opening or closing.