How did the balance of power in western Eurasia shift from 1450 to 1750

How has urban renewal affected poorer neighborhoods in major cities? check all that apply. 1. communities have been transformed to meet the needs of the modern population. 2. old stores and factories have been renovated and used for new purposes. 3. crime rates have increased as more money has come into the neighborhoods. 4. many community businesses have gone into decline or been forced to close. 5. a number of african americans have been displaced from their homes.

(05.04 mc) how did the roman transportation system keep the empire strong? plz

Indian scholars invented all of the following that we use today except .