How does using multiple attributes by category enhance the informativeness of a map?

Using multiple attributes by category significantly enhances a map's informativeness because it allows the reader to access and interpret various layers of information simultaneously. This approach enables viewers to understand complex relationships and patterns that might not be apparent when only one attribute is represented. For example, layering population density, income levels, and transportation routes on a single map can reveal correlations that provide insights into urban planning, resource allocation, and development trends.

By incorporating different categories of data, a map becomes a multifaceted tool, empowering users to draw more nuanced conclusions than they could from a single-attribute representation. Additionally, multiple attributes can be visually distinguished through symbols, colors, or gradients, making the information more accessible and interpretable for the audience. This multidimensionality supports informed decision-making and enhances the overall value of the map.