What term is used for a formal change to the original constitution

In one to two paragraphs, compare and contrast the american, french, and mexican revolution.

Why did the other allies like great britain and france not support wilsons 14 points?

Why are slanted roofs found on many buildings within russia and finland? a. to prevent ice slides. b. to prevent the build-up of water during heavy rains. c. to prevent heat from escaping during the clod winter months. d. to prevent snow build-up.