Disadvantages of chemical agents are:
$I.$ Chemicals are toxic and harmful to human beings and animals.
$II.$ Chemicals pollute the environment and plants.
$III.$ Weedicides used to remove weeds also pollute the soil.
Choose the correct option.

  • A
    $I, II$ and $III$
  • B
    $I$ and $II$
  • C
    $I$ and $III$
  • D
    $II$ and $III$

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