How do state and federal courts differ in the united states? for apex
a. only state courts use an adversarial system during trials.
b. only state courts deal with constitutional issues.
c. only federal courts are established by congress.
d. only federal courts make decisions that cannot be appealed.

ayatollah khomeini can best be described as the leader who declared iran to be an islamic republic.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.