Which had the greatest impact on the growth of the cities and the expansion of the cities to suburbs? a. political changes b. leadership from mayors c. transportation innovationsd. action by the federal government

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth