MCQ
'Ozone hole' means:
- AA large sized hole in the ozone layer.
- BThinning of the ozone layer.
- CSmall holes scattered in the ozone layer.
- ✓Thickening of ozone in the ozone layer.
✓
Answer
Correct option: D.
Thickening of ozone in the ozone layer.
A region of marked thinning of the ozone layer in high latitudes, chiefly in winter, attributed to the chemical action of $CFCs$ and other atmospheric pollutants. The resulting increase in ultraviolet light at ground level gives rise to an increased risk of skin cancer.
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