Synopsis
The story of one of America's richest treasures -- the thin layer of topsoil on which we depend for most of our food, clothes, and other necessities of life. Shows why and how both city and rural people are dependent on topsoil of productive farmlands. Explains how topsoil was made by nature through the centuries and how it may be destroyed in a few years by improper farming methods. Distinguishes between productive topsoil and the less fertile subsoil, and ends on the theme that topsoil can be conserved while still being used for maximum production. Some great shots of New York City.
Uploader's description on archive.org
Details
- Running time
- 9 minutes
- Collection
- Prelinger Archives