Question

What connects points of equal elevation on a map? A. legend C. scale B. series D. contour line

Short answer

D. Contour line

Step-by-step solution

Understanding the Question

The question asks what connects points of equal elevation on a map. To solve this, it's important first to understand what each option represents in terms of geography and map reading.

Examining Option A: Legend

A legend on a map is a key that explains the symbols, colors, or lines used on the map to help the reader understand what each item represents. It does not connect points of equal elevation.

Examining Option B: Series

The term 'series' in geography does not specifically connect points of equal elevation. It is more often associated with a set of maps that cover a large area or different themes, not indicating elevation.

Examining Option C: Scale

A scale is a means of representing distance on a map in a way that can relate directly to real-world distances. It doesn't connect points of equal elevation but helps in measuring distances between points.

Examining Option D: Contour Line

A contour line on a map connects points of equal elevation, illustrating the height or depth across a landscape. These lines indicate the shape and height of the terrain.

Identifying the Correct Answer

Based on the definitions, Option D, contour line, is the correct choice. Contour lines are specifically used to connect points of equal elevation on a map.

Key concepts

Elevation Maps

Elevation maps are an important tool for understanding the rise and fall of landscapes. These maps indicate how high or low the land is compared to sea level at various points. Elevation maps use contour lines to display information about the terrain. Each of these lines connects points that share the same elevation. This helps to visually represent hills, valleys, and flat areas.

Understanding elevation maps is crucial for geologists, hikers, and urban planners. By studying these maps, one can identify the steepness of slopes and predict water flow in case of rainfall. The closer the contour lines, the steeper the terrain. Conversely, widely spaced lines suggest a gentler slope.

Topographic Maps

Topographic maps give a detailed view of the three-dimensional surfaces on the Earth. These maps give information about the natural and man-made features of the landscape. They include contour lines, which are essential for displaying the changes in elevation. Topographic maps not only show elevation through these lines but also provide insights into:

• The shape of the terrain: By examining the bends and curves in the contour lines, one can visualize the shape of the landscape.
• Water bodies: Lakes, rivers, and streams are marked, often using blue lines or shapes.
• Vegetation areas: Forested areas might be shaded green for easy identification.

Topographic maps help in planning outdoor activities like hiking and construction projects, among many other uses. They are an indispensable resource for anyone needing to understand the intricacies of a terrain.

Geographic Features

Geographic features refer to the physical attributes of the Earth's surface. These include natural features like mountains, valleys, and rivers, as well as human-made structures such as roads and buildings. On elevation and topographic maps, geographic features are marked to provide a comprehensive understanding of the landscape. Here's how various features are represented:

• Mountains and hills: Indicated by close-set contour lines circling a peak.
• Valleys and depressions: Represented by contour lines that form a U-shape or V-shape pointing towards higher ground.
• Rivers and streams: Depicted as lines that cut through valley contours, often meandering and marked in blue.

Recognizing these features on maps aids in navigation and helps people appreciate the complexity and beauty of the Earth's surface.