How/why is the immigration from 1879-1920 important?

One impact was that the presence of immigrants led to laws to restrict immigration to the United States, especially from South and East Europe. ... Anti-immigrant groups, such as the Ku Klux Klan, also formed and grew in popularity in the 1920s. Immigrants also contributed to the economic growth of the United States.

Explanation:

One impact was that the presence of immigrants led to laws to restrict immigration to the United States, especially from South and East Europe. ... Anti-immigrant groups, such as the Ku Klux Klan, also formed and grew in popularity in the 1920s. Immigrants also contributed to the economic growth of the United States.

folds are formed when heat and pressure is applied to the rock. the higher the temperature, the more pliable rocks become. folds are more likely to occur when the deformation caused by the compression is applied slowly. faults are defined as the displacement of rock that were once connected along a fault line.

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