Question

what is a contour line​

Answer 1

Answer:

Contour line, a line on a map representing an imaginary line on the land surface, all points of which are at the same elevation above a datum plane, usually mean sea level. ... The diagram illustrates how contour lines show relief by joining points of equal elevation.

Answer 2

Answer:

A line on a map joining points of equal length/height above or below the sea level is known as Contour line.

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