The answer is: unipolar
Unipolar system refers to a form of international system where one nations' become the most influential power that influence other nations' economy and cultural approach.
This can be seen on the fact that most of communist countries based their whole governmental systems on the system that implemented by the soviet union during the cold war era.
The Gulf of Tonkin Resolution allowed President Johnson to send troops to Vietnam, thus waging a war without actually "declaring" it as war. Checks and balances keep the power divided and balanced among government branches; it is the duty of Congress to declare war, so President Johnson waging war without the declaration of war by Congress breaks this system.
I'm sorry if I'm wrong
A C D
The correct answer is <span>Federal agencies purchase inventors’ new inventions
Federal agencies due fund university research which helps many universities discover new things on a daily basis. They also enable copyrights in order to protect the rights of those who discover things and enables them to earn money. It also has its own research institutions where people are motivated to help their country by creating new things.</span>
