Brent studied a group of 100 athletes from fifth to twelfth grade, each year assessing the same features of physical and cognitive development. what type of study did brent conduct

Brent conducted a longitudinal study

A longitudinal study is a type of an observational research technique that involves repeated collection of data or observation of same variables for the same subjects or features over short or long periods of time. Longitudinal research projects can be conducted over years or even generations and it allow researchers to study and compare changes over time.

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; ///approx///5,000 miles;