define the contour gradient
Answers
Answer:
mark me brainliest please
Explanation:
A line marked on the ground surface at a given constant slope.
Contour gradient is a line lying throughout on the surface of the ground and preserving a constant inclination to the horizontal. If the inclination of such a line is given, its direction from a point may be easily located either on the map or on the ground.
If each line represents an equal point of elevation, then any change in elevation would lead to inconsistent line spacing, right? For example, several contour lines spaced close together would indicate steep terrain, while lines spaced far apart would indicate a gentler slope.
Let's dig deeper. There are 3 kinds of contour lines you’ll see on a map: intermediate, index, and supplementary.
1. Index lines are the thickest contour lines and are usually labeled with a number at one point along the line. This tells you the elevation above sea level.
2. Intermediate lines are the thinner, more common, lines between the index lines. They usually don't have a number label. Typically one index line occurs for every five intermediate lines.
3. Supplementary lines appear as dotted lines, indicating flatter terrain.