In what way did American agricultural practices contribute to the Dust Bowl? A) New fertilizers used to improve crop yields destroyed soil and made it
unfarmable.
B) Over-irrigation of soil led to water shortages throughout the western
United States.
C) The introduction of invasive plant species to new environments caused
major crops to fail.
D) Overplowing and the removal of prairie grasses resulted in dry soil that
was easily blown by wind.