The ocean that separates Africa from Australia is the Indian Ocean. It is the third-largest ocean, covering approximately 20% of the Earth's water surface. The Indian Ocean is bordered by several countries, including Somalia, India, Australia, and the islands of Madagascar and Sri Lanka. This ocean is known for its warm waters and diverse marine life, as well as its significance in trade routes, connecting Asia, Africa, and Australia. Due to its strategic location and economic importance, the Indian Ocean has historically played a crucial role in maritime navigation and cultural exchanges among various civilizations.