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TLV values of four pollutants A, B, C an...

TLV values of four pollutants A, B, C and D are 2 ppm, 9 ppm, 20 ppm and 50 ppm. Among these four pollutants which one is the most toxic pollutant ? Why? 

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  • TLV values of four pollutants A,B,C and D are 2ppm, 9 ppm, 20 ppm and 50 ppm. Among these four pollutants which one is the most toxic pollutant ?

    A
    A
    B
    B
    C
    C
    D
    D

  • TLV values of four pollutants A,B,C and D are 2 ppm, 9ppm, 20 ppm and 50 ppm. Among these four pollutants which one is the most toxie pollutant?

    A
    A
    B
    B
    C
    C
    D
    D

  • The TLV values of four pollutants A, B, C and Dare 9ppm, 10ppm, 100ppm and 500 ppm respectively. The most toxic amount them is

    A
    A
    B
    B
    C
    C
    D
    D

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