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The Salinity of the ocean water varies due various geographical as well as ecological factors. Explain.

Topic: Salient features of world’s physical geography;

1. The Salinity of the ocean water varies due various geographical as well as ecological factors. Explain. (250 words)

Reference: Certificate of Human and Physical Geography by G.C Leong.

Why the question:

The question is part of the static syllabus of General studies paper – 1.

Key demand of the question:

Write about salinity in the ocean, its variation. Next, explain the factors affecting variation in oceans salinity. Write about variation in salinity both in terms of latitudinal change and change with depth. Discuss the impact of such variations in salinity

Directive word

Explain – Clarify the topic by giving a detailed account as to how and why it occurred, or what is the particular context. You must be defining key terms where ever appropriate, and substantiate with relevant associated facts.

Structure of the answer

Introduction:

Explain what ocean salinity is and how it varies with latitudinal variations and depth.

Body:

Discuss the factors affecting changes in ocean salinity – precipitation and evaporation, enclosed or not etc.

Discuss the impact of such variations. Highlight the impact of increasing salinity on water cycle, on physiographic factors like density and how that impacts the movement of current, on climate such as in the case of el nino etc.

Conclusion:

Mention about the impact of salinity on the oceans around the world.