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General Knowledge :: Botany

  1. In which one of the following animals is skin a respiratory organ?
  2. A.
    frog
    B.
    shark
    C.
    whale
    D.
    cockroach

  3. Which one of the following is a vitamin?
  4. A.
    Citric acid
    B.
    Folic acid
    C.
    Glutamic acid
    D.
    Lonoleic acid