 | | Why are Plants So Useful to Us? | | by Swapna P, Mar 25, 2008 | | Man and other animals are greatly indebted to plants for the oxygen and nutrition they provided. Green plants purify the atmosphere by absorbing carbon dioxide from it and releasing from their bodies an almost equals volume of pure oxygen during the process of photosynthesis. | | Comments(0) Liked It: 0 |
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