Question

Depletion of the ozone layer is due to__________.
A. Oxides of nitrogen
B. Oxides of carbon
C. Oxides of sulfur
D. None of the above

Answer 1

Hint:Ozone depletion, gradual thinning of Earth's ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. The thinning is most pronounced in the polar regions, especially over Antarctica.

Complete answer: The ozone layer serves to shield plants, creatures, and individuals from unnecessary bright light from the sun. Diminishing of the ozone layer permits more bright light to arrive at the Earth's surface where it can harm harvests and oceanic life and mischief human wellbeing.
Despite the fact that the part of nitrous oxide in ozone consumption has been known for a very long while, the new investigation is the first to expressly compute that job utilizing similar estimates that have been applied to CFCs, halons, and other chlorine-and bromine-containing ozone-draining substances.
With CFCs and certain other ozone-exhausting gases coming under tight restraints because of the 1987 Montreal Protocol, the worldwide settlement that eliminated ozone-crushing mixes, artificial nitrous oxide is turning into an inexorably bigger division of the discharges of ozone-draining substances. Nitrous oxide isn't managed by the Montreal Protocol.
Nitrous oxide is likewise an ozone harming substance, so decreasing its emanation from synthetic sources would be useful for both the ozone layer and atmosphere, the researchers said.
Notwithstanding soil preparation, nitrous oxide is discharged from animal excrement, sewage treatment, ignition, and certain other mechanical cycles. Dental specialists use it as a narcotic (alleged "giggling gas"). In nature, microbes in soil and the seas separate nitrogen-containing mixes, delivering nitrous oxide. Around 33 percent of worldwide nitrous oxide discharges are from human exercises. Nitrous oxide, similar to CFCs, is steady when discharged at ground level, however, separate when it arrives at the stratosphere to frame different gases, called nitrogen oxides, that trigger ozone-devastating response.
The right option is option"A", i.e., 'oxides of Nitrogen'.

Note:- ${NO_x}$ contamination happens when nitrogen oxides are delivered as a gas into the climate during the high-temperature ignition of petroleum products. These nitrogen oxides comprise mostly of two particles, nitric oxide, and nitrogen dioxide; there are other nitrogen-based atoms, however, they happen in much lower fixations. A firmly related atom, nitrous oxide, is a huge ozone-depleting substance that assumes a function in worldwide environmental change.