1.what is the meaning of PRESENCE OF OXYGEN
2. what is the meaning of ABSENCE OF OXYGEN.
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2. what is the meaning of ABSENCE OF OXYGEN.
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Explanation:
adjective. (of an organism or tissue) requiring the presence of air or free oxygen for life. pertaining to or caused by the presence of oxygen. of or utilizing the principles of aerobics: aerobic exercises; aerobic dances.
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Answer:
1. Presence of Oxygen means that in a certain place or substance oxygen is present
2. Absence of Oxygen mean that there are no signs of oxygen on the substance or place