Answer: Should be:
The major industrial cities became overcrowded as workers from rural areas moved there.
and
Because of the steady increase in food production, the population nearly doubled between 1800 and 1850.
Please mark me brainliest if im right
Answer:The Revolution had contradictory effects on slavery. The northern states either abolished the institution outright or adopted gradual emancipation schemes. The Revolution also inspired African-American resistance against slavery. During the Revolution, thousands of slaves obtained their freedom by running away.
Explanation:
The methods that have resulted in the greatest contribution to global security were: <span>military they pledged for the common defense and the stronger and bigger the were the better protection.
Unlike in the past, the greatest military in Modern Era is not possessed by the countries that have the most soldiers, but by those who possessed the most advanced mass destroying weapons.</span>
20- the commencement of Presidential Term and Succession
21- the repeal of the 18th amendment
22- Two-Term Limitation on President
23- District of Columbia Presidential Vote
24-Poll Tax Requirement in Federal Elections
25-Presidential Vacancy, Disability and Inability
26- being able to vote at 18
27-Congressional Compensation