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  1. Concentration of a material which is lethal to 50% animal is called

    2. A.

     LD50
    B.

     LC50
    C.

     NOAEL
    D.

     ADI

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    Answer : Option A

    Explanation :

    LD stands for "Lethal Dose". LD50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals. The LD50 is one way to measure the short-term poisoning potential (acute toxicity) of a material.

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