What is ozone hole and what are its causes?
– The sever depletion of the ozone layer in the Antarctic region is called as the ozone hole. A major chunk of ozone layer has disappeared from this region. The temperatures in the Antarctic region are very cold throughout the year. The cold temperature atmospheres of the stratosphere of the Antarctica create the clouds called as Polar Stratospheric Clouds (PSC). The period of survival of ozone layer depletion causing gases, chlorine and bromine, is longer in these atmosphere that is why they cause maximum destruction in these regions.
