It's what makes up over two-thirds of the entire planet. The ocean contains 97% of all of the water on Earth and an estimated 50-80% of all life is in what we know to be the Ocean.
Sea of Japan,one of the marginal seas in Japan

Sea of Japan

Learn about the Sea of Japan’s marine biodiversity, geopolitical tensions, and environmental challenges, and more to gain insights into the complex realities of this Asia’s vital waterway.