GEOLOGY

Detailed explanation-1: -The principal divisions (in descending order of area) of the five oceans are the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern (Antarctic) Ocean, and Arctic Ocean . Smaller regions of the oceans are called seas, gulfs, bays, straits, and other terms.

Detailed explanation-2: -Historically, there are four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, most countries-including the United States-now recognize the Southern (Antarctic) as the fifth ocean. The Pacific, Atlantic, and Indian are the most commonly known.

Detailed explanation-3: -The Southern Ocean is the world’s fourth-largest body of water. It encircles Antarctica and is actually divided among the Atlantic, Indian, and Pacific Oceans.

Detailed explanation-4: -The Arctic Ocean surrounds the Atlantic to the north. The Southern Ocean lies to the south. The Indian Ocean extends southeast of the Atlantic Ocean, and the Pacific Ocean sits to the southwest.

Detailed explanation-5: -Since National Geographic began making maps in 1915, it has recognized four oceans: the Atlantic, Pacific, Indian, and Arctic Oceans. Starting on June 8, World Oceans Day, it will recognize the Southern Ocean as the world’s fifth ocean.