What was a concern that nasa had with the space race?

Which was the cause of the rise of the persian empire?

How would you describe the relationship between the major world religions today? how do those relationships manifest in the united states today?

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