Choose incorrect sentence.

  • A

    $UV$ radiation of wavelengths shorter than $UV-B$, are almost completely absorbed byearth's atmosphere.

  • B

    $UV-B$ damages $DNA$ and mutation may occur.

  • C

    'Bad' ozone, formed in the lower atmosphere (troposphere) that harms plants and animals.

  • D

    'Good' ozone formed in the troposphere and it acts as a shield absorbing $UV$ radiation from the sun.

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