What defensive barrier was initiated by the qin emperor using conscripted labor in order to keep the xiongnu and other invaders out of the heartland of the chinese empire?

Do you think the cartoonist has a positive or negative view of bryan? why?

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.

Carefully examine this photograph of a home bomb shelter. fearing a nuclear attack, many people put these in their homes during the 1950s. describe what you see in the image. what kinds of things did this homeowner think to include?