Question

what is oxygen?it's use​

Answer 1

Answer:

colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air."if breathing stops, there is no oxygen getting to the brain and the cells begin to die"

Answer 2

Answer:

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Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.