What is required for active absorption of water in plants?

  • A
    Evolution of heat
  • B
    Availability of light and heat
  • C
    Presence of light
  • D
    Availability of energy

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Assertion : Upward movement of water is called ascent of sap.
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What causes the development of root pressure?

Which is not true for root pressure?

According to capillarity theory, . . . . . . alone causes ascent of sap in plants.

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