What is the largest ocean on Earth?

Enhance your skills with the HCCA Geography Exam. Prepare with flashcards and multiple choice questions, each supported with hints and explanations. Ace your test now!

The Pacific Ocean is the largest ocean on Earth, covering more surface area than all the continents combined. It spans approximately 63 million square miles (165 million square kilometers) and is known for its vastness, reaching from the Arctic Ocean in the north to the Southern Ocean in the south. The Pacific Ocean is crucial for global climate regulation and supports a significant portion of the world's marine biodiversity. Its size also means it plays a vital role in trade and shipping routes, making it a central hub for international commerce and maritime activity.

In contrast, the Atlantic Ocean, while significant, is only about half the size of the Pacific. The Indian Ocean, while important for its unique ecosystems and strategic routes, is also smaller, and the Arctic Ocean is the smallest of the four major oceans, located around the Arctic region and characterized by its icy waters. This size ranking underscores the Pacific Ocean's dominance among the Earth's oceans.

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