Fertile loam is a type of soil composed of a combination of clay, silt, and sand particles. It is known for its high fertility and ability to retain moisture, making it ideal for growing crops. The term LOESS is an acronym for 'loosely-cemented, wind-deposited sediment, ' which is a type of soil found in many parts of the world. It is composed of silt particles that have been deposited by wind and is often found in areas with high winds. Loess is often used in agriculture as it is highly fertile and can be easily worked into the soil.