Answer:
Because they were black they were used for art relating to life-giving situations, like Osiris, the god of resurrection. Green stones were used for living things and red, brown, and yellow to refer to sun gods.
Explanation:
I believe it was <span>Constantine I</span>
Nigeria is a federal republic, with executive power exercised by the president. ... Nigerian politics takes place within a framework of a federal, presidential, representative democratic republic, in which executive power is exercised by the government.