Hi there guys!, today we have just finished another unit about soil. In this unit, we learn how soil form and what and how to prevent soil erosion. I now have known how do soil form. There are 7 ways how soil is formed:
- Wind
- Waves
- Water
- Plants and animal
- Human activities
- Frozen water
- Heat from the sun
The explanation for it is too long so, let's just move on to the next part: Soil erosion. There are 3 factors that affect soil erosion: Slope of land, Amount of vegetation and Speed and volume of running water. If the slope of a hill is steeper, the easier soil can be eroded or washed away. If there are small amount of vegetation at an area, soil in that area is more prone to soil erosion because plant protect soil from rain because, roots of the plants bind the soil together. The bigger the volume of water and the faster the water flow, the more soil is eroded.There are 3 ways to prevent soil erosion: Stop cutting down trees unnecessarily because it expose the soil to heat and rain, grow plants and corps along the slopes of hill and mountains and build retaining walls to hold back slopes of hills and mountains and I guess, I have revise the unit too much so,
THE END OF ENTRY
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