Astronomers helped because they could: help measure the time, or what day it is for the caravans.
Hopefully this has helped! :)
Whereas the Federal Government and State governments share power in countless ways, a local government must be granted power by the State. In general, mayors, city councils, and other governing bodies are directly elected by the people.
Answer:
The south is more focused on the production of cotton and things like that for which they needed labor from slaves so the economy of the south was mainly based on slavery and the north on the other hand was more focused on the production of products by hand. invoice was more advanced than the south in economy and failure and its economy was not focused on slave labor
Explanation: