In a study, a group of ten-year-old boys are fed doughnuts every morning for a week and then weighed to see how much weight they gained. Which factor is the independent variable?

mali had been a state inside of the ghanaian empire. after ghana fell because of invading forces and internal disputes, mali rose to greatness under the leadership of a legendary king named sundiata, the "lion king." the songhai empire, already weakened by internal political struggles, went into decline.

answer; the region experienced a surplus of food;

answer; which categories of people are most at risk of becoming a criminals;