Q1
What do closely spaced contour lines indicate?
ASteep slopes
BGentle slopes
CFlat land
DNo slope at all
ICSEClass 10 (ICSE)GeographyCh 3 · Topic 1
Contours and Their Characteristics
Contour lines connect points of equal elevation on a map, and their patterns reveal landform characteristics like slope steepness and shape.
Core concept
Closely spaced contour lines indicate steep slopes, while widely spaced contour lines indicate gentle slopes.
How it works
V-shaped contours pointing uphill (away from higher ground) typically indicate a valley, while contours forming a closed loop indicate a hill or depression.
Why it matters
Contour intervals (the elevation difference between adjacent contour lines) are consistent on a given map, helping calculate elevation changes.
Key detail
Understanding contour patterns helps us visualise three-dimensional terrain from a two-dimensional map, essential for geography and outdoor navigation.
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Quick notes
• Contour lines connect points of equal elevation.
• Closely spaced lines mean steep slopes.
• Widely spaced lines mean gentle slopes.
• V-shaped contours pointing uphill indicate valleys.
• Closed loop contours indicate hills or depressions.
• Contour intervals are consistent on a map.
• This helps calculate elevation changes.
• Contours help visualise 3D terrain from 2D maps.