Question

what is oxygen? .........................................

Answer 1

hello friend .... well oxygen is a molecule .... with molecular formula
O2 which is very very life essential ... because we humans survive only because of oxygen ...
and it constitutes 21% in the atmosphere than other gases ...
hope this will help you.
thank you

Answer 2

heya dear frnd,

_____________________✌

here is your answer,

⭐oxygen is the most abundant gas in earth which make it unique planet,✔

⭐oxygen also helps in respiration, photosynthesis, breathing✔

⭐oxygen can be dissolve in water and thus marine animal , get benefit to breath ✔

#be brainly