Scopettes Comfort Tip Applicators; Safe, highly absorbent, uniform and lint free; ob/gyn/throat and exam room swabs; latex free; Available with non-sized tips or sterile; proudly made in the USA Sales & Service: Call 425.222.5963
Extensive farming combined with severe drought caused the Dust Bowl in the 1930s. Deep plowing on the Great Plains killed the natural grasses that kept soil in place, and the topsoil turned to dust and blew away.
http://www.enotes.com/history/q-and-a/what-were-causes-dust-bowl-1930s-35681 Well, the Great Depression of the 1930s was one of the main factors that caused the Dust Bowl of the same period but it was not the MAIN CONTRIBUTING factor that lead to the ecological disaster.