"The ozone hole is steadily repairing itself".
A.What is the reason behind this?
B. What do you mean by ozone hole?
C. What are the reasons for formation of ozone hole?
Answers
Explanation:
A. Although considerable variability is expected from year to year, including in polar regions where depletion is largest, the ozone layer is expected to begin to recover in coming decades due to declining ozone-depleting substance concentrations, assuming full compliance with the Montreal Protocol.
B. Any part of the ozone layer that has become depleted by atmospheric pollution, resulting in excess ultraviolet radiation passing through the atmosphere.
C. The primary cause of ozone depletion is the presence of chlorine-containing source gases (primarily CFCs and related halocarbons). In the presence of UV light, these gases dissociate, releasing chlorine atoms, which then go on to catalyze ozone destruction.
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Answer:
A. Due to the lockdown, people are staying at home and they walk to nearby shops to get provisions. So, air pollution is reduced as many vehicles are not used. So, the ozone layer is repairing itself.
B.Ozone hole is the hole in the ozone layer, the layer which protects us by filtering the UV rays from the sunlight.
C. Due to usage of engines, harmful gases like carbon monoxide and carbon dioxide are being produced.These gases create the hole in the ozone layer.