Twenty years because of slavery
Answer:
people morality,honesty, civilization and cooperation increase the prestige of nation
The locating that IQ scores have increased dramatically during the last century is referred to as the Flynn impact.
The Flynn effect refers to a secular growth in population intelligence quotient (IQ) located at some point of the twentieth century (1–four). The modifications were rapid, with measured intelligence normally growing around three IQ factors per decade.
An instance of the Flynn effect is IQ rankings elevated by using 13.8 factors from 1932 to 1978. A similar price of growth was observed from 1972 to 2006.
Learn more about the Flynn impact here
brainly.com/question/10607327
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Line 1, this is math not social studies?
