Explain how some of the oxygen molecules you breathe

Reference no: EM13531449

Explain how some of the oxygen molecules you breathe today mayonce have been breathed by George Washington.
I know that matter on Earth is constant and is recycled orcycled again and again. I know that it must have something to dowith the food chain and molecules being reused once organisms die.I'm just not sure that I have all of the details I need to explainthis.

Reference no: EM13531449

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