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| Description: Wind and Water Erosion of Cropland Soils in the U.S. Although soil conservation has been a national goal since the 1930s, erosion continues to be a significant problem in many places. Picture Stats: Views: 488 Filesize: 142.27kB Height: 1080 Width: 1000 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=21575 |