Correct option is C
Introduction
Relief on maps can be represented using several methods, such as contours, form lines, hachures, hill shading, and spot heights. Form lines are used where exact elevation data is unavailable.
Information Booster
(C) Form lines ✔ (Correct Answer)
- Form lines are broken or fragmented lines drawn to represent the approximate shape of the land surface.
- They do not represent exact elevations.
- They are used when detailed surveying has not been carried out.
✔ Correct Answer
Why the other options are incorrect?
(A) Contours ✘
- Contours are continuous lines joining points of equal elevation.
- They are not fragmented.
(B) Rhumb lines ✘
- Rhumb (loxodrome) lines indicate a constant compass bearing.
- Used mainly in navigation, not relief representation.
(D) Graticules ✘
- Graticules are the network of latitude and longitude.
- They are used for locating places, not depicting relief.
Additional Knowledge
Methods of Representing Relief
Method | Description |
|---|---|
Contours | Continuous lines joining equal elevations |
Form Lines | Broken lines showing approximate relief |
Spot Heights | Elevation at a specific point |
Hachures | Short lines indicating slope direction |
Hill Shading | Simulates terrain using light and shadow |
Layer Tinting | Colors indicate elevation zones |