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Q. |
Ultraviolet radiation striking the earth is due to the depletion of – |
A. | carbon monoxide |
B. | carbon dioxide |
C. | ozone |
D. | oxygen |
Answer» C. ozone | |
Explanation: Ozone is a powerful oxidant (far more so than dioxygen) and has many industrial and consumer applications related to oxidation. This same high oxidizing potential, however, causes ozone to damage mucus and respiratory tissues in animals, and also tissues in plants, above concentrations of about 100 parts per billion. This makes ozone a potent respiratory hazard and pollutant near ground level. |
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