The construction of encouraged westward expansion and economic growth in the United States.

a bridge across the Mississippi River

the Atlanta International Airport

a shipyard

a transcontinental railroad

Which objects allow humans to access groundwater? check all that apply.

Distance that the transcontinental railroad covered from omaha to san francisco.

Sarah is making a scale drawing of a painting that is 48inches wide by 120 inches high her paper is 12 inches wide and 24 inches tall she decides to use a scale 1 inches equals 4 inches is this a reasonable scale