Is oxygen beter than air can u live without one of tham

Nah, you cant live without both . You breathe in Oxygen, Out carbon dioxide .And if we didn't have air, we would not have gravity .

Oxygen: The Body's Life Force. ...Without oxygen, our cells wouldn't be able to release the energy in the food we eat, and we woulddie. We take in oxygen through respiration — we move air in and out of the lungs, and blood takes oxygen to the cells of the body. So we need both

answer; (c); to assure that workers have the right to a safe workplace and that it is the employer's responsibility to provide safe and healthy workplace;

the answer the third choice the letter c