Mapp vs<span>. </span>Ohio<span> established that evidence discovered in violation of the Fourth Amendment cannot be used in a state prosecution. ... The Supreme Court ruled that the Fourth Amendment rights were incorporated into the Fourteenth Amendment, which guarantees due process of law at both the state and federal levels.</span>
It was by democracy it helped people have the right to say.
The answer is D. A Supreme court Decision to move the Cherokee west of the Mississippi River. Here is text from Wikipedia,
"Indian removal was a genocide in the 19th century whereby Native Americans were forced by the United States government to leave their ancestral homelands in the eastern United States to lands west of the Mississippi River, specifically to a designated Indian Territory (roughly, modern Oklahoma)."
During the Civil War, it was much easier for the North to obtain and manufacture items that were needed. Certain items during this time were very crucial and important for war, like weapons, clothes, medical supplies, and other things that were needed in abundance. The North definitely had an advantage during this time, as they had larger cities which contained industries which made much needed items.
Gunpowder was obviously needed during this time, but its ingredients had to be imported. Since the North controlled the main ports, they would get much more gunpowder and even some other items from outside forces.
Gunpowder was invented somewhere around 900 in China.
Well, that's basically it... :P