
Soil: What It Is and What It Does
Soil: What It Is and What It Does
Soil: What It Is and What It Does at Fmovies. Explains that different kinds of soil are mixtures of sand, clay, and humus; tells how the weathering of rocks helps make soil; includes simple experiments to show the kind of soil in which different plants grow well.
- Genre: Documentary
 - Country: United States
 - Director:
 - Cast:
 










