In tall plants, because of which factor continuous water column extends upwards?

Atmospheric pressure

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Osmotic pressure

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Suction pull

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Root pressure

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Solution

The correct option is C Suction pull
Transpiration pull or cohesion – tension theory of ascent of sap was proposed by Dixon and Jolly (1894). The molecules of water show cohesion and molecule of water and venel wall show adhesion. Due to the forces water column does not break and pulled upward by the force called transpiration pull.

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