Question

What does a blue line indicate in a river in Topography?

Answer 1

A topographic map illustrates thetopography, or the shape of the land, at the surface of the Earth. The topography is represented by contour lines, which areimaginary lines. Every point on a particular contour line is at the same elevation. These lines are generally relative to meansea level.

Answer 2

Answer:

streams, it indicates streams the outline of water

Explanation: