Soil minerals play a vital role in soil fertility since mineral surfaces serve as potential sites for nutrient storage. However, different types of soil minerals hold and retain differing amounts of nutrients.
Rating Newest Oldest. Best Answer: The cotton gin was so important because it changed the way the South produced their most profitable material, cotton. With the success of the cotton gin, it was easy to make bundles of cotton in short amounts of time. This helped increase trading and the Souths' economy.
The cotton gin (short for engine) was so successful that people copied his invention and he never really made any money from his idea.   The cotton gin changed the Southern world in a hurry. Few machines have changed a world as much as the cotton gin. It not only affected American history but the world.