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Why can the difference between degrees and kilometres create confusion while comparing India's north-south and east-west extents?

Answer and explanation

Correct answer: Degrees are angular measures and kilometres are actual distance

The governing concept is the difference between angular coordinates and linear distance. Latitude and longitude are expressed in degrees, which measure angles on the Earth’s curved surface. Kilometres measure actual ground distance. A degree of latitude is approximately 111 kilometres, whereas the ground distance represented by one degree of longitude varies with latitude and becomes smaller toward the poles. Therefore degrees cannot be compared with kilometres as if they were identical units, making option A correct. Option B wrongly defines degrees as area, option C confuses a distance unit with angular position, and option D ignores the geometry of the Earth.

Related tags

DegreesKilometresLatitudeLongitudeExtent AnalysisSize And ExtentIndia LocationGeography

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