How did mexican cession shape the growth of the united states? (select all that apply.) a. it promoted migration west. b. it promoted cultural hegemony. c. it eliminated nationalism. d. it spread christianity.

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.