The correct answer is D)macadam. Macadam was an invention keyed by a Scottish man who changed the way we view paving of roads and highways. Macadam is a mixture of small stones crushed together with asphalt, the sticky, black material used for both concrete and macadam. The name Macadam comes from the engineer's name, which was John Loudon McAdam. There had been other attempts at macadam before McAdam, but McAdam improved it and his was the first to arrive in the United States.
Congress, I need 20 characters to send it so this is not important, but Congress is the answer.
Answer
C. Oklahoma had received so many additional residents from postwar migration that a census was called
Explanation
The World War 11 caused the largest wave of migration of African American .In the 1940s, most new arrivals settled in coastal cities including California and Washington. Oklahoma recorded a total of 23,300 African Americans that were lost. These variations were caused by the booming of defense industries were most black workers were being employed.