What characterized the distribution of the urban population and of the rural population in Québec during the second half of the 20th century?

The 1920 census marked the first time in which over 50 percent of the U.S. population was defined as urban.

they were the direct result of some cultural difussion.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.