The depletion in atmospheric ozone layer in last century was due to :
[amp_mcq option1=”chlorofluorocarbon” option2=”carbon monoxide” option3=”methane” option4=”pesticides” correct=”option1″]
This question was previously asked in
UPSC CAPF – 2023
– When these chemicals reach the stratosphere, they are broken down by ultraviolet radiation, releasing chlorine and bromine atoms which catalytically destroy ozone molecules ($\text{O}_3$).