guys quickly choose....
either 2 or 6 ...
plzz choose any one 2 or 6
Answers
Answered by
33
Answer:
Oxygen is the eighth element on the periodic table and it is a gas at room temperature. Oxygen is a byproduct of photosynthesis and used by organisms in respiration. Respiration is a combustion reaction
3......
Answered by
2
Answer:
2.
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