Blasting tunnels through mountains Building bridges across rivers
• Leveling hills and filling in hollows
.
These environmental modifications were made in order to construct
F permanent housing for immigrants in urban areas
G canals that linked the Midwest to the Northeast
H
a transcontinental railroad
J
a harbor on the Mississippi River

d is the correct answer

~courtney

barrio is a spanish word meaning neighborhood. in spain, several latin american countries and the philippines, the term is also used officially to denote a division of a municipality while a ghetto is a part of a city in which members of a minority group live, typically as a result of social, legal, or economic pressure. the term may have originally been used in venice to describe the part of the city to which jews were restricted and segregated.