graph shows the number of people who immigrated to the United States from different parts of the world between 1820 and 2010. Based on the graph, which region experienced a decline in immigration to the United States after 1919? A. North and South America B. Europe C. Asia D. Africa

Which statement best describes a major advantage of a confederal system of government over a unitary system

Which of these were achievements of the safavid dynasty? check all that apply.

Type the corect answer in the box. there were many causes of the enlightenment. however, a particular revolution played an important role in its development. this revolution was a result of discoveries made by scientists such as isaac newton and galileo galilei. they dug deep into the realms of science to discover new laws of physics and decipher the mysteries of the universe. the revolution refuted the claims of the catholic church about the position of earth in the solar system. this revolution is called what?