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    Question

    Which Contact poisons penetrate the skin of the pest and

    are used against those arthropods,that pierce the surface of a plant and suck out the juices.
    A Malathion Correct Answer Incorrect Answer
    B caldrin Correct Answer Incorrect Answer
    C DDT Correct Answer Incorrect Answer
    D Pheromone Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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