Explanation:
The regions conquered in the Muslim conquest included rich farming regions in the Maghreb, the Nile Valley and the Fertile Crescent. As is true of the world as a whole, agriculture dominated the economy until the modern period, with livestock grazing playing a particularly large role in the Arab world. Significant trade routes included the Silk Road, the spice trade, and the trade in gold, salt, slaves and luxury goods including ivory and feathers out of sub-Saharan Africa.
Robinson Crusoe is a character in a book published by Daniel Defoe
<em>B</em><em>.</em><em> </em><em>The</em><em> mountainous terrain of Greece resulted in widely isolated settlements.</em>
Greece was made up of multiple city states. These states were separated by geographical features, most notably mountains. The early Greeks settled between these mountains which led to them developing as separate city-states.