Answer:
Civil wars. Probably the most important single cause of Byzantium's collapse was its recurrent debilitating civil wars. Three of the worst periods of civil war and internal infighting took place during Byzantium's decline.
Explanation:
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The President presents an award to the artist who created a statue in
honor of the 500th anniversary of Christopher Columbus' voyage to
America. The president's role is the Chief Executive.
As the leader of the executive branch, the President of the United States has many roles.
He is the Chief of the State. He is the commander-in-chief of the US armed forces(Army, Navy, Air Force, and Coastal Guard). He is the Chief of State. He has the power to appoint the members of his cabinet. And he is the Chief Diplomat.
The government introduced laws protecting worker’s safety
