Vast Areas can refer to large bodies of water, such as seas. The term 'seas' is often used to describe the four largest bodies of water on Earth: the Pacific Ocean, Atlantic Ocean, Indian Ocean, and Arctic Ocean. These four oceans cover almost three-quarters of the Earth's surface and contain 97% of the Earth's water. Additionally, there are many smaller seas, such as the Mediterranean Sea, Caribbean Sea, and South China Sea. All of these seas are part of the vast areas of water that cover our planet.