How was nicolaus copernicus involved in the debate over heliocentric and geocentric theories

Toward the end of the roman empire, what caused a decrease in the use of coined money tell me now

The judicial system of courts derives its powers from what article of the constitution

What is the difference between the kurds and the shia muslims? a the kurds are a religious group while the shia muslims are an ethnic group. b the kurds and the shia muslims are religious groups. c the kurds are an ethnic group and the shia muslims are a religious group. d the kurds and the shia muslims are ethnic groups.