The civilizations of the Huang River valley and the Nile River valley were similar as both were ruled by dynasties. Option D is correct.
A dynasty is understood as a sequence of rulers from the same family, usually in the context of a feudal or monarchical system, but sometimes also appearing in elective republics. The longest-surviving dynasty in the world is the Imperial House of Japan, otherwise known as the Yamato dynasty, whose reign is traditionally dated to 660 BC.
RED
The primary functions of red blood cells are to transport oxygen from the lungs to tissues, maintaining adequate tissue perfusion, and transporting CO2 from the tissues to the lungs.
The white globules have the role of defending the body in various ways, and structure the immune system.
There are no blue globes!
The United States emerged as a great industrial power following World War I -- the most powerful nation in the world, in fact.
The growth of the United States as the world's leader in industry had been proceeding rapidly already prior to the Great War (which we know as World War I). By 1900, 38% of the world's wealth was held by the United States. By 1914, the US produced as much coal as Britain and Germany combined, as well as producing over 40% of the world's iron.
But before World War I, the United States tended to take an isolationist stance toward other nations. World War I advanced the US into superpower status as a nation that used its industrial might to involve itself in global affairs.
The 15th century....I think
A. To protect freedom of the ppl
