The BOOM is usually 70 to 90 feet long and is hinged to the mast at its base, so that both move together when the derrick swings to a new direction. Which question can be answered only if an illustration accompanies the text? A. What is the shape of the boom? B. How long is the boom? C. Does the boom move when the derrick swings? D. Where is the boom attached to the mast?

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.