BPSC 53-55th Exam Prelims 17 Apr 2011 Solved Paper

Loam is soil composed mostly of sand and a smaller amount of clay. By weight, its mineral composition is about $40-40-20\%$ concentration of sand-silt-clay, respectively. These proportions can vary to a degree, however and result in different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam.