Answer:
This arms race is often cited as one of the causes of World War I. The United States' use of nuclear weapons to end World War II led to a determined and soon successful effort by the Soviet Union to acquire such weapons, followed by a long-running nuclear arms race between the two superpowers.
Explanation:
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A, 20.
The vigesimal numbering system, or base-20 numeral system, is based on the number twenty. Twenty individual numerals/digits are used, ten more than in the usual decimal system.
Answer:
The Industrial Revolution saw the rise of factories in need of workers. Children were ideal employees because they could be paid less, were often of smaller stature so could attend to more minute tasks and were less likely to organize and strike against their pitiable working conditions.
