HISET Social Studies Practice

What does the term 'contour lines' signify?

1. Lines representing different land uses

2. Lines connecting points at equal elevation

3. Lines that indicate temperature changes

4. Lines showing air pressure variations

The correct answer is: Lines connecting points at equal elevation

The term 'contour lines' refers to specific lines on a map that connect points of equal elevation above a given level, such as sea level. This means that any point that falls along a contour line is at the same height, allowing for a visual representation of the terrain's shape and slope. Contour lines are essential for understanding the topography of an area, as they help users visualize hills, valleys, and flat regions. These lines allow for effective interpretation of landforms in various applications, including landscape design, construction, and hiking navigation. The spacing of contour lines also provides insight into the steepness of slopes; closer lines indicate steep terrain, while wider spacing suggests more gradual changes in elevation. Understanding contour lines is crucial for anyone studying geography, mapping, or environmental science, as they provide foundational knowledge about how to read and interpret maps.