Saltwater bodies are large areas of water that contain a high concentration of salt. The most common example is the ocean, which covers about 71% of the Earth's surface. These bodies of water are home to a diverse range of marine life, including fish, whales, and coral reefs. Saltwater is essential for many ecosystems and plays a crucial role in regulating the planet's climate. In addition to oceans, there are also seas, gulfs, and estuaries that are considered saltwater bodies. These areas can vary in size and depth, and they often serve as important habitats for wildlife. Saltwater bodies are vital for human activities as well, providing resources like fishing, shipping, and recreation.