What separates africa from europe? the pyrenees mountains the iberian peninsula the strait of gibraltar the meseta?

Which of the following would an isolationist support?

What did the introduction of silk into the mediterranean do for the abbasid empire

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