What is contour line
​

Hey mate

Explanation:

This is ur answer

A contour line is a line drawn on a topographic map to indicate ground elevation or depression. A contour interval is the vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line.

Hope it helps!

Brainliest pls!

Follow me! :)

Answer the use of flood plains and irrigation;

No map. ie where is the map as this question cannot he answered without a map so the question as is is irrelevant and i am disappointed as i am a geologist.