1. Coal contains mineral matter which is converted to ash during combustion. 2. As the dissolved ions crystallised, the mineral matter precipitated out. 3. A ) Surface soil : Organics mixed with mineral matter . 4. Fossils are often formed by pseudomorphic replacement of the remains by mineral matter . 5. It is composed of mull humus ( well decomposed alkaline organic matter ) and mineral matter . 6. This mineral matter is unevenly distributed and is more concentrated in the germ and the seed coat. 7. "' Rhizoliths "'are root systems that have been encased in mineral matter . 8. Whereas rhizocretions which include rhizoliths, are created by the pedodiagenetic accumulation of mineral matter around roots. 9. The acid dissolves the mineral matter from the coal ball, leaving a projecting layer of plant cells. 10. Suspended mineral matter in the mine water pumped into these lakes has changed the composition of the lakes'sediments.
