It makes it easier to count the number of contour lines.
It depends how steep the mountain or hill is, usually the contour lines are bolded and is every fifth line. hope this helped
An index contour is a thicker contour line that is labeled with the elevation of that contour. It usually appears every fifth contour line and helps to quickly identify elevation changes on a topographic map. Regular contour lines are thinner and connect points of equal elevation.
A contour interval is the vertical distance between two contour lines on a map, representing the change in elevation. An index contour is a thicker contour line labeled with the elevation of the line above sea level, typically every fifth contour line. It helps users quickly identify elevation values on a map.
No. Every point on a contour line has the same elevation.
Every point on a given contour line is at the same elevation. Neighboring contour lines are at different elevations.
A thicker line that has numbers written on it showing the rising or decreasing elevation on a topographic map By Ash Every fifth contour line on a topographic map, usually thicker, used to label elevation.
No.
create a sentence for contour line
A contour line is a line defining elevation on a map.
22 marbles are in the fifth line.
A contour line in art is an outline of a subject with no shading.