Question

which gas in earths atmosphere forms ozone?
oxygen
nitrogen
water vapor
carbon dioxide

Explanation:

Ozone (\(O_3\)) is formed from oxygen (\(O_2\)). Ultraviolet (UV) radiation from the sun splits oxygen molecules (\(O_2\)) into individual oxygen atoms (\(O\)). These single oxygen atoms then react with other oxygen molecules (\(O_2\)) to form ozone (\(O_3\)). Nitrogen (\(N_2\)), water vapor (\(H_2O\)), and carbon dioxide (\(CO_2\)) do not form ozone in the Earth's atmosphere through the main ozone - forming process.

Answer:

oxygen