Question

how can we draw contour lines?

Answer 1

1. A contour line must never divide or split.2. A contour line must never simply end. Somewhere (usually off the map) the two ends of a contour line must jointo enclsoe an irregularly circular region.3. A contour line must represent one and only one elevation.4. A contour line may never intersect other contour lines (overhanding cliffs are a rare excpetion, in which casethe hidden contours are dashed).5. Contour lines form a V pattern when crossing streams. The V always points upstream (uphill).6. closely spaced contour lines indicate a steep slope; widely spaced lines indicate a gentle slope.

Answer 2

Answer:

All the topographical features show varying degrees of slopes. For example, a flat plain exhibits gentler slopes. Similarly, well listen mountain ranges are also characterised by varying degrees of slopes. i. e., steep to gentle. Hence, the spacing of contours a significant since it indicates slopes.