The term "World Oceans" refers to the vast bodies of saltwater that cover about 71% of the Earth's surface. There are five major oceans: the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, and Arctic Ocean. These oceans play a crucial role in regulating the planet's climate, supporting marine life, and facilitating global trade. Oceans are home to diverse ecosystems, including coral reefs, deep-sea trenches, and open waters. They provide essential resources such as fish, minerals, and energy. Additionally, oceans are vital for human activities, including transportation, recreation, and tourism, making them an integral part of life on Earth.