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If 3.28 million sq km is mistakenly treated as coastline in studying India's size, which concept is confused?

Answer and explanation

Correct answer: Units of area and length

The governing concept is dimensional analysis: the unit attached to a number identifies the type of measurement it represents. The value 3.28 million square kilometres describes India’s area, because square kilometres measure the size of a surface. A coastline is a one-dimensional distance and is therefore measured in kilometres, not square kilometres. Option A correctly identifies the confusion between area and length units. Option B joins unrelated concepts, while C and D also pair categories that do not explain the measurement error. The safest examination method is to read both the number and its unit before recalling the associated geographical fact. This prevents area, boundary and coastline figures from being interchanged.

Related tags

Area Length ConfusionCoastlineUnitSize And ExtentIndia LocationGeographyClass 11 Mcq

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