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UPSC Prelims 1986 · World Geography · Oceans, Seas and Straits
Mean Sea Level (MSL) is the
- (a) Average level of the sea
- (b) Height of water above ground level
- (c) Average height of waves
- (d) None of the above
Show the answer and explanation
Answer: (a) Average level of the sea
MSL is the average level of the sea surface between high and low tides.
Why the others are wrong
(c) Wave height is different.
The trap
None.
🔒 Heights on maps are measured from MSL.
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