NEET Biology Strategies for Enhancement in Food Production / खाद्य उत्पादन में वृद्धि के लिए रणनीतियाँ Question Bank Biological Pesticide

  • question_answer
    The two natural insecticides used before 1940

    A) Pyrethrum and rotenones

    B) Pyrethroids and nicotine

    C) Pyrethrum and azadirachtin

    D) Pyrethrum and squill

    Correct Answer: B

    Solution :

    Not Available


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