Free floating plant is

Options :
  1. Pistia
  2. Eichhornia
  3. Azolla
  4. all the above

Answer and Explanation :-

Answer: Option 4


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Look," he said, "the point is there's no way to be a hundred percent sure about anyone or anything. So you're left with a choice. Either hope for the best, or just expect the worst."If you expect the worst, you're never disappointed," I pointed out.Yeah, but who lives like that?
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