Soil
By Elijah Smith
Soil composition and sediment sizes found in soil.
Soil has a mixture of plants, weathered rock, mineral fragments, water and air. It takes soil a thousand years to form, so its considered a nonrenewable resource.
Causes of Soil erosion
The causes of soil erosion is bad farming technique (humans), wind and water. Example: dust bowl farming. The cause of that was many people kept farming so in result of that the wind took the topsoil away.
Soil pictures
Soil horizons
First there's topsoil then there is horizon b which it does leaching the there's horizon c the thickest horizon and below (which you don't see is) horizon d which is bedrock.
Terracing
Terracing helps slow down the process of soil erosion because the water just keeps going down carrying little soil.
Contour farming
When farmers have slopes they make patterns in their farming to slow down soil erosion.
Methods of preventing soil erosion
People used many ways to prevent soil erosion like terracing, wind breaks, contour farming, spraying water, and no till farming.