1) The Pacific Ocean is the largest ocean on Earth, covering more than 30% of the planet's surface.

2) The concept of sovereignty refers to the supreme authority and power of a state to govern itself, make decisions, and control its own territory without interference from external forces.

3) The ocean covers about 71% of the Earth's surface and contains roughly 97% of the planet's water.

4) The Great Lakes, consisting of Lake Superior, Lake Michigan, Lake Huron, Lake Erie, and Lake Ontario, form the largest group of freshwater lakes on Earth by total area. They are shared by the United States and Canada and are of significant ecological and economic importance.