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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-33

  • question_answer
    Man can maintain an ecological balance in the biosphere by

    A)  deforestation

    B)  developing new breeds of cultivated plants and domesticated animals

    C)  using insecticides and pesticides

    D)  understanding the delicated balance in the relative number of organisms

    Correct Answer: D

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