What was a major effect of the creation of the
interstate highway system on the United States?
(1) the loss of population in the Sun Belt
(2) a decline in federal funding for urban renewal
projects
(3) an increase in suburbanization
(4) an increase in congressional representation
from New England
"(3) an increase in suburbanization" was a major effect of the creation of the interstate highway system on the United States, although it should be noted that there were others.
