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      Question

      The weeds that produce all or most of their vegetative

      growth beneath the water surface, having true roots, stems and leaves are:
      A Emerged weeds Correct Answer Incorrect Answer
      B Submersed weeds Correct Answer Incorrect Answer
      C Floating weeds Correct Answer Incorrect Answer
      D Marginal weeds Correct Answer Incorrect Answer
      E Aquatic weeds Correct Answer Incorrect Answer

      Solution

      Submersed weeds are vascular plants that produce all or most of their vegetative growth beneath the water surface, having true roots, stems and leaves. Eg. Utricularia stellaris, Ceratophyllum demersum. 

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