A system in which states agree to form a national government, but maintain their sovereignty
Archaeology is the answer
No, it is false that by <span> the 1930s, the labor movement had achieved its goals so there was no more need for labor unions, and as a result, labor unions do not exist today, since there are still a number of labor unions in existence. </span>
They were referred to as "Royal Colonies"; it's a term with British origins means those territories not annexed yet under its control.
Answer: C: It has varying degrees of thickness.
Explanation: