Petersen Christine Books
Books di Petersen Christine con argomento Soils Juvenile Literature Soils
Super Soils
Petersen Christine
edizioni Abdo Group collana Abdo Group (Library)
Dig into the world of geology with the Rock On! series! Super Soils introduces readers to what makes up soil, from humus and plants and animals to water and air. Chapters discuss how weathering, erosion, parent material, decay, bacteria, organic matter,