What was the greatest fear of the native american tribes during the french and indian war?

During what century did muhammad recieve his first revelation from god

This map is depicting the 16th century route of what explorer

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.