To influence American opinion, To urge people to join the military, and To encourage civilian contributions
Explanation: They used it to influence what Americans believed. They used it to try and get people to join the military. They used it to get civilians to do things that would contribute to the war.
The old water pipe at La Playa, Mexico is an example. it was man-made by more than the farmers in more than 4,500 years. It doesn’t only have an impact on the environment but also to the people.
