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The complete history of the Universe -- from the Big Bang to 200 my into the future

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History of the Universe eBook. 398 pages, 300 illustrations only $2.99

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Carbon Dioxide

Carbon dioxide molecules are made from one carbon and two oxygen atoms joined together by covalent bonds.

The chemical symbol is CO2.

These molecules were found in the atmosphere of the young Earth. They are absorbed by plants during photosynthesis and released by animals during respiration. So carbon dioxide is continually recycled in the air.

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History of the Universe eBook. 398 pages, 300 illustrations only $2.99

eBook only $2.99
398 pages, 300 images

"I find the science fabulous...an extremely useful teaching tool."
Professor David Christian

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