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.
But the cotton gin also resulted in the expansion of slavery in the South. Because cotton is a labor-intensive crop, the spread of cultivation deepened and broadened the region's dependence on slave labor. While southern planters would reap great profits as a result of his invention, Whitney was less fortunate.