Hi here you go
1. mathematics
2. trade
3. astronomy
4.a form of written communication with pictures
5.the invention of the wheel
6.the concept of time.
Answer: NAACP
Explanation: NAACP stands for The National Association for the Advancement of Colored People. It's a civil right movment organization in the United states, and it was also formed in 1909.
Answer:
After Hurricane Katrina, many people needed supplies after the storm so there wasnt a decrease in demand.
Americans grew their own food during World War I to conserve supplies so that farms could support soldiers. ... They were intended to reduce the pressure caused by the war effort on the public food supply.
Answer: Well the railroads made it possible for urban cities to get food and fuel other needed materials.
Explanation: When railroads came in it allowed more things to come and go through cities making it perfect for distributing needed goods for the people who lived there and nearby.
