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| Description: How Coal Forms Partly decayed vegetation forms thick peat accumulations saturated with water. Burial by sediments heats and compresses the peat, gradually changing it to coal. Although it contains ~1/7 the energy of an equivalent weight of anthracite, dried peat has long been used as a fuel Picture Stats: Views: 996 Filesize: 184.33kB Height: 880 Width: 1402 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=21622 |