There were 22 that ruled during that period.
There was a lot of pollution and possibly has used slaves depends since this happened but tbh I think it was that there was a lot of families probably have to go work and get very little money but I tried.
Answer:
rom the first days of the Civil War, slaves had acted to secure their own liberty. The Emancipation Proclamation confirmed their insistence that the war for the Union must become a war for freedom. It added moral force to the Union cause and strengthened the Union both militarily and politically
Explanation:
Scientists control the number of significant digits in calculations involving measurements the more digits, the more precise the calculation is. Scientists often use scientific notation to work with very small or very large numbers in a more organized way, because it allows to write the numbers in a compact way.