They could solve it. According to them, only 1 representative from each state would be in the congress. With 13 states, 9/13 yes votes would be needed to make something a national law. The articles could abolish slavery federation wide if 9 states out of 13 vote to abolish it.
In the 1800s the Great Plains region of the United States was characterized by: Vast expanses of native grasses.
The answer is simple: The Enlightenment