Large numbers of skilled workers left Iran in the early 21st century, primarily because "<span>c. they sought more skilled opportunities in countries like the United States," since there were far fewer restrictions in the US. </span>
<span>The US is a mixed economy, with mostly free market features. There are some command economy features, such as a public military, public police forces, public roads, etc</span>
this is what I got from Google-
When the U.S. Supreme Court ruled in the Dred Scott decision that the Missouri Compromise's prohibition of slavery in territories was unconstitutional, an increasingly diverse body of opponents of slavery rallied around the Republican Party.
<span>Kublai Kahn separated the Chinese and the Mongolians and gave them more fair treatments.</span><span />
