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UPSC Prelims 1980 · World Geography · Rocks, Quakes and Landforms
A narrow strip of land, bordered on both sides by water, connecting to larger bodies of land is called
- (a) Dune
- (b) Equinox
- (c) Isthmus
- (d) Strait
Show the answer and explanation
Answer: (c) Isthmus
An isthmus is a narrow strip of land joining two larger landmasses (Panama, Suez).
The idea
An isthmus connects larger lands, while water lies along its two sides. A strait has the opposite arrangement: water connects larger water bodies between lands. Identify what makes the connection before naming the feature.
Why the others are wrong
(a) A dune is a sand hill.
(b) An equinox is a date.
(d) A strait is water joining two seas.
The trap
Isthmus (land) vs strait (water).
Elimination technique
The connecting material in the stem is land, so strait cannot fit. A dune is a sand deposit and an equinox is an astronomical event; isthmus is the land-connection term.
Also know
The Panama isthmus connects North and South America; the Suez isthmus connects Africa and Asia. Canals cut artificial water routes across these land connections. Malacca and Hormuz are natural straits. A peninsula projects into water but does not necessarily join two larger landmasses.
🔒 Isthmus of Panama, Suez; Strait of Malacca, Hormuz.
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