What are contours? What are contour index? In what way are they useful? What are the imaginary lines that join places of equal height?
Understand the Problem
The question includes a list of terms related to geography or earth sciences, along with instructions for answering questions about contours and related concepts. It appears to be seeking information about specific geographic features and their definitions.
Answer
Contours are lines joining points of equal elevation; contour index is the labeled line. They show elevation and landforms.
Contours are imaginary lines joining points of equal elevation on a map. The contour index refers to every fifth contour line, which is darker and labeled with elevation to aid navigation. Contours help represent elevation and describe landforms or underwater features.
Answer for screen readers
Contours are imaginary lines joining points of equal elevation on a map. The contour index refers to every fifth contour line, which is darker and labeled with elevation to aid navigation. Contours help represent elevation and describe landforms or underwater features.
More Information
Contours are essential for understanding topography on maps, helping in navigation and land assessment.
Tips
Don't confuse contour lines, which show elevation, with lines depicting other data such as temperature (isotherms) or pressure (isobars).
Sources
- What are contours? - USGS - usgs.gov
- Contour Line - Wikipedia - en.wikipedia.org
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