The idea that people within a state can and should determine the laws within that state is referred to as <span>popular sovereignty. </span>
Because there was so little known about the ocean floor at the time
What do you mean I can help but the question isn't very clear
For the answer to the question above, I believe the answer is <span>Argentina's invasion of the Falkland<span> Islands and the fall of the Soviet Union.
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Which makes
<span><u><em>Argentina Surrendered its claims to the Falkland Islands.</em></u></span>the answer. I hope this helps. Have a nice day!