Which is the biggest ocean in the world?

Appeared in: SGPGI Nursing Officer-2022

Explanation

The Pacific Ocean is the largest ocean in the world by a significant margin.
It covers an area of approximately 165.25 million square kilometers, which is about one-third of the Earth's total surface area.
For comparison, it is larger than all of Earth's land area combined.
It is also the deepest ocean, containing the Mariana Trench.

Option B: The Atlantic Ocean is the second-largest ocean, not the largest. Its area is approximately 106.46 million square kilometers.
Option C: The Arctic Ocean is the smallest of the world's five major oceans, with an area of about 14.06 million square kilometers.
Option D: The Antarctic Ocean, also known as the Southern Ocean, is the fourth largest (or second smallest) ocean. Its area is approximately 20.33 million square kilometers.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain General Knowledge: World Geography as background academic context rather than a clinical decision trigger.
This question assesses general knowledge, which is often a component of the general aptitude and intelligence sections of nursing entrance examinations.
While not a clinical question, having a broad base of general knowledge is an attribute of a well-rounded professional.
What if? If the question had asked for the 'busiest' ocean for trade routes, the answer would likely be the Atlantic Ocean, connecting Europe and the Americas.

How to Approach the Question

Identify the core question: The question asks to identify the 'biggest' ocean.
This is a factual recall question based on general geographical knowledge.
Mentally list the major oceans: Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic.
Compare their relative sizes based on recalled facts.
Select the Pacific Ocean, which is widely known to be the largest by area.

Concept Tested & Keywords

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Practise the full SGPGI Nursing Officer-2022

Attempt every question from this paper in a timed mock, then review the full solution for each one.