Explain how the persian empire was able to maintain an efficient system of communication.

Which elements are part of group culture ? choose all answers that are correct a. resources b. history c. population d. language

Why do people place so much importance on washington, dc?me

Which of the following is an example of a concurrent power? a. when a group of states work together to regulate interstate commerceb. when a federal law enforcement agency state policec. when a state creates a treaty with a foreign governmentd. when a local government collects taxes on imports