An experimental study is conducted examining the relationship between sleep deprivation and depression. participants are kept awake by the experimenters for different amounts of time, and then are assessed on various symptoms of depression. in this study, the number of hours that a participant stays awake is the

I believe the answer is: independent variable

Independent variable is the type of variables which would be influenced by the control group that handled by the researchers. In every research Independent variable represent the things that the researchers want to measures through correlation with other factors.

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; allows decision to stand;