Elevations refer to the height of a point or object above a reference level, typically sea level. This measurement is crucial in various fields, including geography, architecture, and aviation. For example, the elevation of a mountain can determine its climate and vegetation, while the elevation of a building affects its design and structural integrity. In cartography, elevations are often represented on maps using contour lines or color gradients. These visual tools help people understand the terrain's shape and steepness. Accurate elevation data is essential for activities like hiking, urban planning, and environmental studies, ensuring safety and effective resource management.