Answer:
the fertilizers used by farmers contaminate the river
Answer:
Guaranteed all citizens equal protection of the laws.
The best answer would be B-it can rule laws unconstitutional that violate protected rights. The Supreme court has complete jurisdiction. If they decide that a new law go against the Supreme Court, then they can rule it unconstitutional and the law would not be a law anymore.
The 7th Amendment states that you are entitled to a jury and a trial by law for civil cases in the federal courts.