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Class 11ChemistryEnvironmental ChemistryEnvironmental Study
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The part of the Earth where life exists,known as the biosphere,is composed of which components?

  • A
    Lithosphere
  • B
    Hydrosphere
  • C
    Lithosphere and Hydrosphere
  • D
    Lithosphere,Hydrosphere,and Atmosphere
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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Environmental Chemistry

Subtopic

Environmental Study

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Match List-$I$ with List-$II$.
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$B$. Nitrate $(> 50 \ ppm)$ $II$. Brown mottling of teeth
$C$. Lead $(> 50 \ ppb)$ $III$. Laxative effect
$D$. Fluoride $(> 2 \ ppm)$ $IV$. Kidney damage

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