“Our Soil – A Layer of Life” Study Guide https://www.maswcd.org/Youth_Education/StudyGuides/Soils_study_guide.htm#:~:text=Soil%20is%20sand%2C%20silt%2C%20clay,air%20and%205%25%20organic%20matter. Probably too much information, but the beginning lays it out. Share this:TwitterFacebookLike this:Like Loading...
Seasoned 
It’s fascinating, and that first quote about the history of the soil really got me thinking.