1. Soil Erosion
... dry and loose. Water erosion occurs during the spring with the thawing and melting action of the snow. Soil generally consists of a large mineral component and a small amount of organic material, plus water and air. The mineral content is bedrock, which is broken down into particles by various ... in the early 20's as a result of scientific research into the causes of flooding. The research showed that levee construction was an insufficient method of control to stop flooding. The first steps were made to provide for reforestation and soil conservation. The Clarke-McNary Act of 1924, the ...
- Word Count: 2944
- Approx Pages: 12
- Has Bibliography
- Grade Level: High School