In addition, one of the most notable New Deal programs, the Social Security Board (SSB), was enacted in 1935 and 1939, providing benefits to the elderly and to widows, unemployment compensation, and disability insurance.
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crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.