27. (A) visual (B) chemical (C) tactile (D) acoustic

37. According to paragraph 2, why did southern Mesopotamia depend on long-distance trade for bronze production? (A) The region lacked natural deposits of copper and tin. (B) Local rulers preferred imported goods for prestige reasons. (C) The region of southern Mesopotamia had no skilled metalworkers. (D) Trade routes in southern Mesopotamia were required by religious law.