How did the chinese exclusion act affect chinese immigrants who were already in the united states?
the act forced chinese immigrants to leave the us and return to china.
the act blocked chinese immigrants from becoming american citizens.
the act prevented chinese immigrants from taking low-paying jobs.
the act prohibited chinese immigrants from establishing chinatowns.

The Chinese Exclusion Act was a law signed in 1882 that intended to stop the immigration of Chinese laborers also known as "coolies", in order to promote the hiring of American laborers and the payment of good salaries for employees. The Chinese Exclusion Act was also surrounded by a general dislike and racist thoughts towards Chinese population, and it had consequences in the Chinese immigrants who were already in the US because they could no longer become American citizens. Thus, the right answer is the option "The act blocked Chinese immigrants from becoming American citizens".

from the conditions of the working class in england by friedrich engels,the main idea is :

the reform movements that arose during the antebellum period in america focused on specific issues: temperance, abolishing imprisonment for debt, pacifism, antislavery, abolishing capital punishment, amelioration of prison conditions (with prison's purpose reconceived as rehabilitation rather than punishment), the humane treatment of animals, the humane and just treatment of native americans, the establishment of public institutions for the care of the destitute, orphans, blind, and mentally ill, the establishment of public schools, the abolition of tobacco use, vegetarianism, health reform, homeopathic medicine, woman's rights (including, at first, especially the establishment of a woman's right to own property apart from her husband and her right to sue for divorce), and the amelioration of labor conditions (including higher pay, the right to form unions, the right to strike, and the demand for limits on the number of work hours, and safe working conditions).

explanation: