air pollution is common pollution in city, town maximum place.
oxygen is most important in our body that is the main reason in our health problem becouse if you are don;t activity in some day then you feel refresh feel that mean if activity but you note carry in oxygen then you feel defection.
if lung;s are working perfectly then and carry oxygen that mean you are healthy but your lung;s are working correct but not carry in oxygen then that are feel diffraction.
oxygen is most important in our body that is the main reason in our health problem becouse if you are don;t activity in some day then you feel refresh feel that mean if activity but you note carry in oxygen then you feel defection.
if lung;s are working perfectly then and carry oxygen that mean you are healthy but your lung;s are working correct but not carry in oxygen then that are feel diffraction.
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