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Oxygen
01
a chemical element in gas form with no color that living things need for breathing
Example
Oxygen is necessary for the combustion process in engines and fires.
Blood transports oxygen from the lungs to the tissues of the body.
Trees release oxygen into the atmosphere as a byproduct of photosynthesis.
The doctor administered oxygen to the patient to help with breathing difficulties.
Divers carry tanks of compressed oxygen to breathe underwater.
