Heat causes chemical reaction so that might be a way in which people use chemical properties to separate one substance from another substance .
The best answer is <span>increased as more US troops went to fight in Vietnam.
LBJ's policy of "escalation", sending more troops and resources into Vietnam, started to quickly shift public opinion against the US presence in Vietnam. Although initially considered unpatriotic to protest the war, gradually more and more Americans began to oppose the war. </span>
The correct answer is B, the National Road.
The National Road was the first major managed road in the United States built by the federal government. Carried out between 1811 and 1837, the 1,000-kilometer route connected the Potomac and the Ohio River and was one of the western tracks for thousands of settlers.
Construction began westward in 1811 at Cumberland, Maryland, on the Potomac River. After the financial panic of 1837 and the ensuing economic depression, funds from Congress were dry and construction was halted in Vandalia, Illinois.
Explanation:
Stalin's First Five-Year Plan, adopted by the party in 1928, called for rapid industrialization of the economy, with an emphasis on heavy industry. It set goals that were unrealistic—a 250 percent increase in overall industrial development and a 330 percent expansion in heavy industry alone.
The answer is Greek and Scandinavian
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