Dr. mccall found that class projects were of poorer quality when students worked in groups compared to when each student did an individual project. this difference can be explained by the phenomenon of

The correct answer is social loafing. Social loafing is being defined as a phenomenon by which a person exerts less effort in terms of achieving a certain goal especially when they are involved in a group compared to when they are only doing it alone.

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.