what is the advantage of contour lines over form lines?
Answers
Answer:
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The nature of ground surface of a country can be understood by studying a contour map. Hence the possabe route of communication between different place can be demarcated. A suitable site or an economical alignment can be selected for any engineering project.
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Explanation:
The Line of intersection of a level surface with the ground surface is known as a . It can also be defined as a line passing through point of equal reduced level . The general map of country includes the location of roads , river , village railway , pond/water logged, village, town , survey plot number and so on , but the nature of ground surface cannot be realized from such a map . However for all engineering project involving road,railway,inauguration project and so on , a knowledge of nature ground surface is required for locating suitable alignments and estimating the volume of earth work . Therefore the contour map is essential for all above engineering project . This is why the contour map are prepared.