Question

what are the different colours used on a toposheet what is each colour used for?​

Answer 1

Explanation:

Topographic maps use green to denote vegetation such as woods, while blue is used to denote water features like lakes, swamps, rivers, and drainage. ... Red is used for man-made features, like main roads or political boundaries, and purple for new changes or updates on the map that weren't previously represented.

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Answer 2

Blue colour is used in the topographical map to show water bodies like perennial river, canal, well, tank and spring. Topographic maps use green to denote vegetation such as woods, while blue is used to donate water features like lakes, swamps, river and drainage.