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The east-west extent of India is measured by what?

Answer and explanation

Correct answer: Longitude

The direct answer is C: the east-west extent of India is measured through longitude. Longitude is the angular distance east or west of the Prime Meridian, measured in degrees. The reasoning is: east-west position changes from one meridian to another; meridians are lines of longitude; therefore the east-west extent is found from the difference between the eastern and western longitudes. India extends approximately from 68°7′E to 97°25′E, a difference of about 29°, so longitude is the relevant measure. Option A, altitude, means height above sea level and tells how high a place is, not how far east or west it lies. Option B, latitude, measures distance north or south of the Equator and is used for north-south position and extent. Option C is correct because longitude identifies east-west position and is also related to local time differences. Option D, rainfall, measures precipitation and cannot measure geographical extent. A common mistake is to interchange latitude and longitude: latitude runs east-west as parallel lines but measures north-south distance; longitude runs north-south as meridians but measures east-west distance.

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LongitudeEast West ExtentLocation

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