What does this article demonstrate to us about immigration in the U. S? A The groups of immigrants were always changing due to different push factors in other countries.

B. The U. S. did not have a large group of immigrants during the late 1800s

C. The information is focused on the first wave of immigrants ​

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

What is the natural environment? the story of the interaction of people forming societies, cultures, and civilizationsan increase in the world’s temperaturethe process by which social institutions are adopted on a global scalethe natural world in which people, plants, and animals live

What refers to the existence of more than one level of government in the country