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
Wind is another natural factor which causes erosion. Wind is known to pick up soil and shift it to another space whilst it does so the actual soil decomposes and loses its soil particles. Wind and water together can cause erosion to occur severely. Wind itself can not cause as much harm as they do together. Ice and snowfall are another 2 natural causes of erosion and they too can be devastating to crop yields, landscaped gardens, land investments and commercial parks.