Soil: What It Is and What It Does
Soil: What It Is and What It Does
Soil: What It Is and What It Does online na Filmoviplex. 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.
- Žanr: Documentary
- Zemlja: United States
- Direktor:
- Glumci: