Many immigrants at the turn of the twentieth century came to the United States to escape religious persecution in their homelands. This is an example of what concept? assimilation
push-pull factor
cultural shock
nativism

push-pull factor

Explanation:

There were two types of factors that caused people to migrate to the U.S. Economic, Religious, and Political Factors were the most important push factors. The rise of American industry and the growth of the railroads created jobs, which acted as a pull factor.

what's the passage bud?