A. It's primarily formed from decomposed plants.
B. Loam contains mostly sand and gravel.
C. Loam is a type of soil that's good for agriculture.
D. It has equal concentrations of sand, clay, and silt.
True loam is not just any old topsoil. Technically, it has a certain texture, based on the size of its particles, clay being fine-textured, sand being coarse, and silt in between.
