Which of these is an example of a subsequent boundary? A) Steep mountains separated two regions before people settled in them.
B) A border separating two states is removed because the states are now one state.
C) A border is created dividing the North and South of a country because of conflict.
D) A wall is built along an existing border to keep people from crossing it illegally.

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 direction does the mississippi river flow

What is the name of property for 9+(8+1)=(9+8)+1