km^2の世界の海は次のとおりです。

|1 |太平洋|155,557,000 |
| ---- | ----------------- | -------------- |
|2 |大西洋|76,762,000 |
|3 |インド洋|68,556,000 |
|4 |南洋|20,327,000 |
|5 |北極海|14,056,000 |

海は、地球上で最大の、最も深く、最も塩味のある水域です。最大の海、地中海は、表面積と体積により、最小の海の約3倍です。
The world's oceans, in km^2 are:

| 1  | Pacific Ocean   | 155,557,000 |
|----|-----------------|-------------|
| 2  | Atlantic Ocean  | 76,762,000  |
| 3  | Indian Ocean    | 68,556,000  |
| 4  | Southern Ocean  | 20,327,000  |
| 5  | Arctic Ocean    | 14,056,000  |

Oceans are the largest, deepest, saltiest bodies of water on the planet. The largest sea, the Mediterranean Sea, is about 3 times smaller than the smallest ocean by surface area and volume.