Topic: Salient features of world’s physical geography.
2. Accounting for horizontal and vertical distribution of Salinity, discuss the regional distribution of salinity in the major oceans across the world. (250 words)
Difficulty level: Moderate
Reference: Insights on India
Why the question:
The question is part of the static syllabus of General studies paper – 1 and mentioned as part of Mission-2022 Secure timetable.
Key Demand of the question:
To write about horizontal, vertical regional distributions of Salinity.
Directive word:
Discuss – This is an all-encompassing directive – you must debate on paper by going through the details of the issues concerned by examining each one of them. You must give reasons for both for and against arguments.
Structure of the answer:
Introduction:
Give context about variations of salinity with latitudinal variations and depth.
Body:
In the first part, write about the horizontal distributions of Salinity – salinity decreases from equator towards the poles, highest salinity is observed between 20° N and 40° N etc and the reasons for it.
Next, write about vertical distributions of Salinity – increases with increasing depth, draw a small diagram to show the same.
Next, write about salinity varies in major oceans on the planet and reasons therefore.
Conclusion:
Conclude by writing about the impact of salinity of various climatic phenomenon.
