Which of following statements summarizes why the United States is one of the most ethnically diverse countries in the world? The United States is composed of only European, African, and Latin American Settlers
The United States is composed of only European, African, and Latin American Settlers

a. People migrate to the United States from all over the world for economic opportunities and political freedoms that they may not have in their own countries
b. People migrate to the United States from all over the world for economic opportunities and political freedoms that they may not have in their own countries

c. The United States is a country of immigrants from a handful of countries

pls i have a test due by the end of class and i need a 100 hurry up make sure its right no files or viruses pls!
40 pts if u answer this

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms