2. Sample Papers
  3. Railways

Railways Sample Paper RRB (Group D) Sample Test Paper-12

  • question_answer
    The stability of a pond ecosystem depends on

    A)  micro-organisms and fishes

    B)  micro-organisms and zoo planktons

    C)  Fishes and reptiles

    D)  Producers and consumers

    Correct Answer: D

You need to login to perform this action.
You will be redirected in 3 sec spinner