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Topic Ocean salinity
Asked 3 times across 2 UPSC exams over 7 years (2018–2025), peaking in 2018.
Key insights
- Most tested in CDS — 2 of 3 PYQs
- Most asked in 2018
- Recurs across 3 years (2018–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CAPF 2018 → CDS 2022
How the concept evolved
Rising — more than half its appearances (3 of 3) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CDS2025
What is the correct sequence of the following salts in ascending order according to their presence in the sea water ?
- Calcium Carbonate
- Calcium Sulphate
- Magnesium Chloride Select the answer
using the code given below :
- A 3, 1, 2
- B 1, 3, 2
- C 1, 2, 3 ✓
- D 2, 1, 3
✓ Correct answer: (C)
Geography › Oceanography
CDS2022
Isohalines are lines joining equal :
- A temperature.
- B pressure.
- C rainfall.
- D salinity. ✓
✓ Correct answer: (D)
Geography › Oceanography
CAPF2018
Arabian Sea records higher salinity than the Bay of Bengal because
- A Arabian Sea exhibits high rate of evaporation and low influx of fresh-water ✓
- B Arabian Sea has shallow water
- C Arabian Sea has more enclosed land
- D Arabian Sea receives more rainfall
✓ Correct answer: (A)
Geography › Oceanography
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