HOW DOES COAL FORM?
2007-01-22 11:00:54 · 3 answers · asked by BLR. 1 in Education & Reference ➔ Homework Help
"Coal forms in swampy areas as the result of the decay of plants in the absence of oxygen. Biochemical changes produced by bacteria release oxygen and hydrogen and concentrate carbon. Coal goes through several changes during formation. With increased pressure and time, impurities and moisture are removed. In swamps where coal forms, other sediment, such as sand, clay, and silt, also is deposited. The weight of the sediment compresses the underlying organic matter. During this process, moisture and other materials are squeezed out, leaving a high carbon concentration."
http://www.fi.edu/guide/dukerich/intro2.html
2007-01-22 11:09:02 · answer #1 · answered by S. B. 6 · 0⤊ 0⤋
organisms die, and after a long time, the materials that used to form the organisms changes into coal. sorry. no details, that's all i remember from biology.
2007-01-22 19:06:43 · answer #2 · answered by kookykid 2 · 0⤊ 0⤋
Here you go. The first site should help.
2007-01-22 19:08:31 · answer #3 · answered by Dee 6 · 0⤊ 0⤋