Oceans -

: Bordered by Africa, Asia, and Australia, it is a key region for marine biodiversity.

Oceans cover roughly 71% of Earth's surface and hold about 97% of the planet's total water. This massive, interconnected body of salt water is the primary life support system for our planet, providing approximately half of the world's oxygen and absorbing over 25% of human-induced carbon dioxide emissions. The Five Major Oceans Oceans

: Surrounding Antarctica, it is the newest named ocean and known for its cold, harsh environment. : Bordered by Africa, Asia, and Australia, it