An American company wants to buy diamonds from Angola. It needs to convert its U. S. dollar to the Angolan Kwanza. Which of the following explains this process? (4 points) a Currency exchange

b Government regulation

C Supply and demand

d Trade agreement​

What is the term for a short statement about history that has not been yet been proved

Why had conditions in france deteriorated in 1778 and 1789?

10 points per question and brainlist 1. name four of the ruling dynasties of china. describe at least three contributions to society from each dynasty. 2. why did the qin ruler zheng burn chinese literature and philosophy books? how did the han dynasty establish a strong and effective government? why did people rebel against the sui rule? 3. what new technologies were invented during the tang dynasty and fully developed in the song dynasty that would eventually have a great impact on the world? explain why this technology had such an impact. 4. who were the invaders that seized control and took over the song dynasty? 5. how was china's history affected by its policies of isolation from the outside world during the ming dynasty?