Answer:
D. The melting pot concept. America is often called a melting pot. Some countries are made of people who are almost all the same in terms of race, religion, and culture.Anywhere diverse people are assimilated could be called a melting pot.
Explanation:
Prevent tyranny by acting as a check on power.
The lines going up and down are longitude and the lines going from side to side are latitude.
A triangle’s angles are equivalent to 180 degrees so the third angle would have to equal 20 degrees