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
Grazing and deforestation are also human causes of erosion because human life is making the grounds surface soil bare and extremely prone to erosion by natural forces. Across America where soil is being eroded due to human activity. Another way in which humans cause erosion is by simply watering their gardens.