Which nation has a unicameral (one-house) legislature known as the knesset?

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

What is the main social system that existed in ancient china?

What is the main inference that can be drawn from adam smith’s book the wealth of nations?