‘Ozone – hole’ means
A. a large sized hole in the ozone layer.
B. thinning of the ozone layer.
C. small holes scattered in the ozone layer.
D. thickening of ozone in the ozone layer.
Answer:B
‘Ozone – hole’ means
A. a large sized hole in the ozone layer. B. thinning of the ozone layer. C. small holes scattered in the ozone layer. D. thickening of ozone in the ozone layer.