Practical escalators use electric fields to speed up and increase the energy of a beam of particles, which are steered unfocused by magnetic fields.
Answer:
Abolished the old immigration quotas.
Explanation:
Since the Immigration Act of 1924, immigration was based on a national-origins quota system, which provided immigration visas to 2% of the total number of people of each nationality in the United States, based on the 1890 national census.
The Immigration Act of 1965 abolished those immigration quotas and established a visa system for reuniting immigrant families and attracting skilled labor people to the United States.
Answer:
Originally, areas of medieval cities in which Jews were compelled to live. Today the term usually refers to sections of American cities inhabited by the poor.
Explanation:
Answer: C
Explanation: The Marshall Plan(also known as the European Recovery Program), was a United States program providing aid to Western Europe following the devastation of World War II. It was enacted in 1948 and provided more than $15 billion to help finance rebuilding efforts in Europe. In addition to economic redevelopment, a major goal of the Marshall Plan was to halt the spread of communism through the continent.
This was crafted as a four-year plan to reconstruct cities, industries and infrastructure that were damaged during the war, to eradicate trade barriers between European nations and develop trade relationships between those nations and the United States.
