4. Frequency of Your Period. The frequency of your menstrual cycle is a good indicator of how your health is doing. According to the Mayo Clinic, menstrual flow might occur every 21 to 35 days and last two to seven days, with menstrual cycles shortening and becoming more regular as you age.
Answer 1 Water, Wind, and Humans. Water usually causes rock and soil erosion. Wind is considered a tectonic type of erosion, as the wind can cause rock movement and soil tr â¦ ansfers. Humans also gradually erode away the earth by not very creative land management. (i.e. Farmers) Here is a link for more info: http://www.wisegeek.com/what-causes-erosion.htm _____ Answer 2 windwaterglacial
Causes of Soil Erosion. As mentioned, the predominant causes of soil erosion are either related to naturally-occurring events or influenced by the presence of human activity. Some of the principal causes of soil erosion include: Rain and rainwater runoff: In a particular heavy rain, soil erosion is common. First of all, the water starts to break down the soil, dispersing the materials it is made of.