Petersburg, West Virginia. Petersburg is a city in Grant County, West Virginia, USA. The population was 2,467 at the 2010 census. It is the county seat of Grant County. Contents.
The particles that make up soil are categorized into three groups by size: sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Although a soil could be all sand, all clay, or all silt, that's rare. Instead most soils are a combination of the three.
â Soil particles are grouped intofive main size ranges: gravel,coarse sand, fine sand, silt andclay.A soil with a relatively even mixof particle sizes is called a loam. A3. Features of soil A3.2 Vegetable SOILpak The word âloamâ refers to a relatively even mix of particle sizes in asoil.