from the diffusion equation: corps themselves should benefit more or less
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送交者: blobfish 于 2009-11-22, 15:30:06:
回答: 还是无法理解，植物所需的CO2是从空气中来的，土里的那点CO2一出来还不早被稀释了 由 cktears 于 2009-11-22, 15:21:00:
if the whole land is covered by organic meterials, the effect is considerable
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