Vast oceans cover more than 70% of the Earth's surface and are essential to the planet's climate and ecosystems. They are home to a diverse range of marine life, including fish, whales, and coral reefs. The largest ocean, the Pacific Ocean, stretches from Asia to the Americas and is deeper than any other ocean. Oceans play a crucial role in regulating temperatures and weather patterns. They absorb carbon dioxide and produce oxygen, making them vital for life on Earth. The Atlantic Ocean and the Indian Ocean are also significant, each contributing to global trade and cultural exchanges between continents.