The way that Islam was able to cross the Sahara desert in the Eight century is :
Muslim merchants from north Africa followed trading routes through the Sahara desert
And they spread Muslim's teaching during the trading process
hope this helps
Answer:
Giving all power to a central government. controlling civil liberties. establishing federalism. limiting citizen’s rights.
Explanation:
Well, as the population of the world increased more people could fill job positions, decreasing the need for a person to learn more than one skill. This allowed for more people to focus one industry to advance. Hope it helped, could you give me a brainliest?