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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8

How does surface tension help a plant?

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Question

How does surface tension help a plant?

Short/Brief Note
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Solution

Water molecules rise up due to surface tension. Xylem tissues are very narrow vessels present in plants. Water molecules are absorbed by the roots and these vessels help the water to rise upward due to “capillarity action” which is caused by the surface tension of water.

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Chapter 2: Force and Pressure - Exercises [Page 20]

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Samacheer Kalvi Science [English] Class 8 TN Board
Chapter 2 Force and Pressure
Exercises | Q VIII. 8. | Page 20

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  1. Estimate the energy required for one molecule of water to evaporate.
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