Weathering and Erosion
Weathering is the breakdown
Erosion is the carrying away
Agents of weathing and erosion?
Factors influencing rate of weathing?
As you can see, there is lots of overlap between these, but the main factors contributing to weathering and erosion are the climate (temperature and rainfall), the rock itself (surface area, cracks, and composittion), and time.
When a rock weathers, it becomes soil. Dig down, it is not all uniform. Here is what you will find:
The thickness of the layers is determined by the rate of weathering (more weathering = thicker layer).
The nutrient level of the soil is determined by the amount of life there and the amount of leaching rainfall
Based on that, describe the soil in the grasslands.
We try to prevent soil erosion in lots of ways. Brainstorm some...
Low till farming and other ideas...
Land movement could be quickly like landslides, but it also can move slowly. That is called "creep." Here is how you can tell land is creeping: