Explain the interaction between the main four components of the Earth's physical systems, be sure to include the name of each system and its primary function.

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

Why is the improved education of girls so important, especially with regard to economics and health? what are the leading causes of death among teenage girls in africa and how are they tied to education?

Which of the following statements is most likely a characteristic of an authoritarian government in africa