Question

what are contour lines?

Answer:-
A line on a map joining points of equal height above and below sea level is called as contour lines

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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. ... Numbers on the lines give the height in feet. (Sea level is zero.) Lines drawn closely together indicate that a slope is steep.

Answer 2

Answer:

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