Which aspect of Islam unite Muslims throughout the Islamic world

The movements that emerged within Islam were a split between Sunni & Shiites. Also there was a linking between Europe, Asia and Africa due to trade. Another movement that emerged was that Arabic became the shared language of Muslims. Muslims learned Arabic because it is the language of the Quran. (Wherever Islam spread, so did knowledge of Arabic.)

Explanation:

muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.

answer; the above statement is (true);