Which force is mainly responsible for the ascent of sap during the day?

Practice MCQ for SSC, UPSC, RRB Exams

A. Root pressure A.
B. Capillarity B.
C. Transpiration pull C.
D. Osmotic pressure D.

Correct Answer: C সঠিক উত্তর: C

Explanation ব্যাখ্যা

Transpiration pull is the process where water evaporates from the leaves, creating a negative pressure that pulls water up from the roots through the xylem vessels. This is the most significant driving force behind the ascent of sap.

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