Once a certain interpretation or precedent is set in the Supreme Court, the way the law is interpreted is based on that precedent.
Answer:
Long staple cotton was profitable because the cotton fibers could be easily separated from the seeds. ... While reducing the number of slaves needed to grow cotton the cotton gin greatly increased the areas where cotton could be profitably grown. This increased the demand for slaves.
The answered to your question is rudder. The rudder is a fin-like object on the back of a ship. It allows the ship to not rely completely on the sails to change direction.
D. Haiku
Haiku poems are only 3 lines