The five oceans from smallest to largest are: the Arctic, Southern, Indian, Atlantic and Pacific.

The headquarters of the International Atomic Energy Agency (IAEA) is located in (B) Vienna, Austria. Vienna has been the headquarters of the IAEA since its establishment in 1957. The city's selection as the headquarters reflects its role as a neutral and international city, making it a suitable location for an agency tasked with promoting the peaceful use of nuclear energy and preventing its use for military purposes.

South Atlantic Drift: Also known as the Westerlies Drift, it is the eastward continuation of the Brazil current.

Auckland, city, north-central North Island, New Zealand. The country's most populous city and its largest port, Auckland occupies a narrow isthmus between Waitematā Harbour of Hauraki Gulf/Tīkapa Moana (east) and Manukau Harbour (southwest).

Congo is the only major river which crosses the equator twice. It is the second largest river in Africa after Nile and the second largest river in the world.

The Sargasso Sea, located entirely within the Atlantic Ocean, is the only sea without a land boundary.

The largest lake in the world by both area and volume is (A) Caspian Sea. The Caspian Sea, although called a "sea," is technically the largest lake on Earth. It is located in Central Asia and is bordered by five countries: Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan. The Caspian Sea has significant economic and environmental importance for the surrounding regions and plays a crucial role in the geopolitical landscape of the area.