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New Theories / Re: An essay in futility, too long to read :)
« on: Today at 11:00:39 »
It's not only about sand, but sand is part of what will make a topsoil.
https://www.americangeosciences.org/education/k5geosource/content/soils/what-materials-make-up-soil
https://www.americangeosciences.org/education/k5geosource/content/soils/what-materials-make-up-soil