Question

the main goal of the emergency quota act of 1921 was to
limit the number of immigrants from a given country.
restrict the immigration of asians to the united states.
ban immigration between the years of 1901 and 1921.
end immigration from germany.

Explanation:

The Emergency Quota Act of 1921 was a law that aimed to limit immigration. It set quotas (limits) on the number of immigrants from each country. For example, it used a formula based on the 1910 census to determine how many people could come from each nation. This was different from restricting a specific group like Asians (that was more the Chinese Exclusion Act and other earlier laws targeting Asians more directly). It didn't ban immigration for a 20 - year span (1901 - 1921) as it was passed in 1921. And it wasn't focused on ending German immigration specifically; it was a more general (though discriminatory) quota - based system for many countries.

Answer:

limit the number of immigrants from a given country.