A researcher wants to study the effects of playing video games 24-7 for a week. What type of study would be best suited to make this determination

observational study

Explanation:

the researcher cannot control the independent variable, which is the player himself as his response to playing the video game 24X7 is the purpose of the study.  this is an observational study and the researcher has to wait for 7 days to see the effects on the player.

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

i hope this

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.