Ask your health care provider how much weight you should gain. A woman who was average weight before getting pregnant should gain 25 to 35 pounds after becoming pregnant. Underweight women should gain 28 to 40 pounds. And overweight women may need to gain only 15 to 25 pounds during pregnancy.
Each series consists of soils having major horizons that are similar in color, texture, structure, reaction, consistence, mineral and chemical composition, and arrangement in the soil profile. A soil profile is the sequence of natural layers, or horizons, in a soil. It extends from the surface downward to unconsolidated material. Most soils have three major horizons, called the surface horizon, the subsoil, and the substratum.
SSC107-Fall 2000 Chapter 1, Page - 8 -. 3. Aggregated (ideal soil structure)Characterization of soil structure: (mostly qualitative, since is a function of time)1. Size-Particles (particle size distribution)- Aggregates (dry-sieving; water stability test by wet-sieving)- Porosity2.