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Soils and soil composition
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medium permeable gypsum decomposed O horizon broadcasting compost A horizon nitrate spagnum clay nitrogen fixation peatmoss silt aggregate culture bogs sand water culture vermiculite tillable nutriculture parent material topsoil aeroponics horizon B horizon profile subsoil residual soils C horizon alluvial bedrock lacustrine structure loess crumbs colluvial acidity glacial alkalinity decomposer neutral percolation petiole |
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Some of the puzzles that people list for the public get indexed by the search engines (like Google). Some people find those puzzles and cannot figure out how to make a puzzle of their own. So this page now has the navigation sidebar.
There are now buttons on the puzzle so that you can get a clean page, in either HTML or PDF, that you can use your browser's print button to print. The PDF format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The PDF takes awhile to generate. Don't panic!