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Science 0176

Science 0176

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2019-12-09 18:32

Our crop plants evolved about 400 million years ago, when CO2 in the atmosphere was about 5000 parts per million!
#DennisTAvery

2019-12-09 18:32

This post was published via steemit. Ecency is not the originator or editor of this content and displays it for discovery purposes only.

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