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    Question

    Which herbicide kills all types of weeds?

    A Alachlor Correct Answer Incorrect Answer
    B 2, 4-D Correct Answer Incorrect Answer
    C Paraquat Correct Answer Incorrect Answer
    D Pendimethalin Correct Answer Incorrect Answer

    Solution

    Selective herbicide: A herbicide is considered as selective when in a mixed growth of plant species, it kills some species without injuring the others.e.g. Atrazine Non-selective herbicide: It destroys majority of treated vegetation e.g. Paraquat

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