Urban sprawl or the spread of housing away from the cities is called .

A. Slums
B. Suburbs
C. Farms
10 points!!

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted