Which term refers to the road paving system developed by a Scottish inventor in 1815 that used a raised foundation of crushed rock?
a. macadam
b. turnpike
c. tarmac
d. asphalt
The correct answer for the question that is being presented above is this one: "a. macadam." Macadam is the term that refers to the road paving system developed by a Scottish inventor in 1815 that used a raised foundation of crushed rock
