Gender: Female. Usage: Lucille, of Latin origin, is a popular first name. It is more often used as a girl (female) name. People having the name Lucille are in general originating from Belgium, France, Ireland, Netherlands, Switzerland, United Kingdom, United States of America. For another variant of the name Lucille across the world, see Lucia.
Topsoil is the top layer of the earth's surface. Topsoil is dark in color and high in organic matter, which makes it very easy to till and fertilize ground for growing plants. It is scraped from the ground and sold in bags or bulk, often called black dirt.
Topsoils are dark primarily because they contain dead organic material in various stages of decomposition. Some are already dark because of their mineral content. The degradation of organic matter within the soil produces a substance called humus, which has a complex chemical structure and is composed of carbon-rich compounds that impart the dark color. These compounds also interact with the iron and manganese content of the soils.