The largest percentage of Earth's surface is covered by oceans, which account for approximately 71% of the planet's total area. These vast bodies of saltwater play a crucial role in regulating the Earth's climate, supporting biodiversity, and facilitating the water cycle. Oceans serve as habitats for numerous marine species, from tiny plankton to massive whales. Additionally, they provide resources such as fish and other seafood. The interdependence between the oceans and atmospheric conditions influences global weather patterns, making them vital to Earth's ecological and climatic systems.