| A | B |
|---|
| weathering | process where rocks are broken down by chemicals ,wind & rain |
| mechanical | process where rocks are broken down by physical means |
| abrasion | grinding & wearing away of rocks |
| acid | type of precipitation that chemically reacts with rocks |
| differential | type of weathering where softer rocks material erodes faster than harder rocks |
| soil | mixture of rock particles and organic matter |
| bedrock | solid layer of rock under the various soil layers |
| humus | organic material from remains of plants & animals |
| pH | scale that measured acidity of liquids |
| conservation | method of protecting top soil from erosion & nutrients |
| erosion | process by which wind, water, ice or gravity transport soil & sediment |
| salinization | accumulation of salts in soil |
| organic | material that is carbon based and generally came from once living things |
