Quote:
Originally Posted by Duffman
This is clearly a double standard, last I checked nothing eats steel either (nor is it a nutrient) or any elemental material either. And steel is pretty much the primary building material in the structures that renewable sources are built from except PV which uses their own mix of toxic chemicals.
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Nothing much eats silicon, either. At least not refined silicon (and refining it is quite energy-intensive, BTW), though there are some microorganisms that incorporate SiO2 (quartz or sand) into their skeletal structures.