The Arab Muslim empire had a strong central government. What are the 2 effects or results that happened because of this?

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

6. how are goods and services distributed in a free market system?

Me! these questions are based on american people in the south essential questions: question 1: for what reasons will one group of people exploit another?focus questions: question 1: what influenced the development of the south more: geography, economy, or slavery?question 2: what were the economic, political and social arguments for and againsts slavery in the first half of the 19th century.