Why is the concept of the E. U. (European Union) known as “single market”?

The single market refers to the EU as one territory without any internal borders or other regulatory obstacles to the free movement of goods and services.

answer; the edward snowden leaks of nsa classified material;

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question:

when would a new household be started?

a.when the oldest male died

b.when a man and a woman married

c.when the house could not hold everyone

d.when a child was born

answer: us d when a child was born

hope this have a great day and brainlest