Question

what is oxygen?
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Answer 1

Answer:

a gas that you cannot see, taste or smell. Plants and animals cannot live without oxygen.

Answer 2

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.

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