The most significant health problem related to ozone depletion is
1. An increase in skin cancer and cataracts associated with an increase in exposure to ultraviolet light.
2. Climactic threats related to global warming and the greenhouse effect.
3. Higher rates of lung cancer due to a corresponding increase in levels of radon gas.
4. Rising levels of chronic obstructive pulmonary disease and asthma resulting from an increase in inhalation of ozone gas.
ANS: 1
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