While political borders often ignore tribal boundaries, differing tribal ghanans were able to use unite under?

What factors led to europe's global dominance in economic and political factors? what impacts did that dominance have on other peoples and environments?

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

What is the relationship between groundwater and aquifers?