Examlex
Frequency is expressed in terms of cycles per second, or Hertz (Hz), to honor a famous radio physicist.
Oil Price
The cost per barrel of crude oil, influenced by global supply and demand dynamics, geopolitical events, and market speculation.
Great Depression
A severe worldwide economic crisis that took place during the 1930s, marked by high unemployment, falling prices, and failed businesses, leading to widespread poverty.
U.S. Expansion
A phase in the economic cycle characterized by increased industrial and financial activity, leading to greater employment and output within the United States.
Base Period
A specific time period used as a reference point to measure changes in economic indicators or indexes.
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Q61: When television became popular in the 1950s,