Which of the following information is used in altimetric frequency graph?

Correct option is A

Spot height is the correct information used in an altimetric frequency graph. In an altimetric frequency graph, spot height data, which indicates the exact elevation of specific points on the ground, is used to analyze the distribution of elevations across a region. This data helps in understanding the variations in elevation at various points, and is crucial for creating such graphs to analyze terrain.

Information Booster:

1. Spot height is used to measure and record the exact elevation of specific locations, which is essential for constructing an altimetric frequency graph.
2. These spot heights are typically represented as points on a map and can be plotted to create an overall understanding of elevation variations in a region.
3. Altimetric frequency graphs rely on such data to show how the number of locations at particular elevations increases or decreases as elevation changes.
4. The graph itself will plot the distribution of different elevation ranges, based on spot height data, providing insight into the area's topography.
5. Spot height data is essential for topographical analysis and for assessing the landscape's variation.

Additional Knowledge:​

Density of population (b): Population density refers to the number of people in a given area, and it is not related to the study of elevation. It is not used in an altimetric frequency graph.

Contour lines (c): While contour lines represent areas of equal elevation on a map, they are not directly used to create an altimetric frequency graph. Spot height data is extracted from contour lines, but the graph specifically uses numerical spot heights.

Cumulative frequency (d): Cumulative frequency refers to a method of counting how many occurrences fall within a certain range. While it is an essential part of statistical analysis, it is used in combination with spot height data to visualize the frequency distribution of elevation.