Minerals are known to enter the plant root by means of a number of mechanisms,including all except one of the following. Which one of the following is $NOT$ a mechanism for moving minerals into roots?

  • A
    Foliar feeding
  • B
    Active transport
  • C
    Proton $(H^+)$ pump
  • D
    Cation exchange

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$R$ : Minerals are present in the soil as charged particles.

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