Topsoil consists of minerals, air, water and living things such as plants and plant roots, microorganisms, insects and worms, and the organic materials they produce.
About this Author
In Jacksonville, Fla., Frank Whittemore is a content strategist with over a decade of experience as a hospital corpsman in the U.S. Navy and a licensed paramedic. He has over 15 years experience writing for several Fortune 500 companies. Whittemore writes on topics in medicine, nature, science, technology, the arts, cuisine, travel and sports.