Which of the following was an advantage of the triple entente?
having the same seas made sharing defensive ports easier.
the triple entente shared borders and it was easy to protect.
having a centralized location made trading weapons easier.
the controlled the seas together.

They controlled the seas together.

Explanation: The Triple Entente was composed by an alliance between The United Kingdom of Britain and Ireland, The Russian Empire and The French Third Republic. These three entities did not share the same seas or boarders and did not have a centralized location as opposed to their enemy, The Triple Alliance, integrated by The German Empire, The Austria-Hungary Empire and Italy, countries who actually did share boarders. The Russian Empire collided with the Baltic Sea to the northwest and the Black Sea to the south; The French Third Republic collided with Mediterranean Sea to the south and the Atlantic Ocean to the north; The United Kingdom Collided with the Atlantic Ocean to the west and the North Sea to the east.  

What actually was an advantage of the Triple Entente over the Triple Alliance was the fact that, whilst surrounding their enemies, they were able to control all those seas and narrow straits together freely.

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.