Which of the following statements about the ‘Southern Ocean&rsqu...
- Context: The Southern Ocean is known for having the cleanest air on Earth, a fact previously attributed mainly to minimal human activity.
- However, recent research has unveiled that clouds and rain play a significant role in keeping the air pristine.
- Option c: In 2000, the International Hydrographic Organization delimited the waters within the Convergence as a fifth world ocean basin – the Southern Ocean – by combining the southern portions of the Atlantic Ocean, Indian Ocean, and Pacific Ocean
- Option b: The Southern Ocean extends from the coast of Antarctica north to 60 degrees south latitude, which coincides with the Antarctic Treaty region and which approximates the extent of the Antarctic Convergence
View all questions of this test
Which of the following statements about the ‘Southern Ocean&rsqu...
Recognition of the Southern Ocean:
The correct statement about the Southern Ocean is that it was officially recognized as a distinct ocean by the International Hydrographic Organization in 2000.
Explanation:
- The Southern Ocean is the newest recognized ocean in the world, as it was officially designated as a distinct body of water by the International Hydrographic Organization (IHO) in 2000.
- Prior to this recognition, the Southern Ocean was considered to be part of the Atlantic, Indian, and Pacific Oceans, but its unique characteristics, including the strong circumpolar current and the Antarctic convergence zone, led to its designation as a separate ocean.
- The Southern Ocean is located in the southern hemisphere surrounding Antarctica. It is the fourth largest of the Earth's five oceans, covering an area of approximately 20.3 million square kilometers.
- The waters of the Southern Ocean are known for their cold temperatures and unique marine ecosystems, including a variety of marine mammals such as seals and whales, as well as numerous species of seabirds.
- The recognition of the Southern Ocean as a distinct ocean has important implications for scientific research, conservation efforts, and maritime activities in the region.