The Antartic ozone hole develops during
a)summer.
b)March and April.
c)the Southern Hemisphere spring.
d)January and February.
the Southern Hemisphere spring
For about six weeks during the Southern Hemisphere spring (mainly in September and October), the ozone layer in the Antartic stratosphere (mostly at altitudes from 11 to 23 km, or 7 to 14 mi) thins drastically and then recovers during November.