Answer:
It loosened immigration restrictions
It resulted in a surge in immigration, especially from Asia and Latin America.
Explanation:
The United States had very strict laws regarding immigration and naturalization. It ensured preference was given to individuals which had the American background.
Immigration and Naturalization Act of 1965 ensured that the immigration laws were loosened and resulted in a surge in immigration, especially from Asia and Latin America. It helped people reunite with their families in the country.
A choropleth map (from Greek χῶρος "area/region" and πλῆθος "multitude") is a type of thematic map in which areas are shaded or patterned in proportion to a statistical variable that represents an aggregate summary of a geographic characteristic within each area, such as population density or per-capita income.
