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Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
‘Ozonehole’ means:
  • A
    A large sized hole in the ozone layer.
  • ✓
    Thinning of the ozone layer.
  • C
    Small holes scattered in the ozone layer.
  • D
    Thickening of ozone in the ozone layer.
✓

Answer

Correct option: B.
Thinning of the ozone layer.

Mention of the term 'hole' rules out options $'a'$ and $'c'.$ Thickening is similar to strengthening and hence options 'd’ is ruled out.

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