Final answer:
Choropleth, flowline, and graduated symbol maps are all examples of thematic maps, used to represent various data geographically. Flowline maps are employed to illustrate movement, such as migration or trade flows, using arrows of different sizes.
Step-by-step explanation:
Choropleth maps, flowline maps, and graduated symbol maps are all examples of thematic maps. Thematic maps are designed to show specific themes or subjects, unlike physical maps that show natural features of the Earth's surface, political maps that show territorial borders, or topographic maps that represent the three-dimensional terrain of an area using contour lines. A choropleth map uses varying shades or colors to represent statistical data aggregated over geographic areas.
Flowline maps are employed to illustrate movement, such as migration or trade flows, using arrows of different sizes. Graduated symbol maps, on the other hand, utilize symbols like dots or icons that change in size to signify the frequency or intensity of a certain attribute within a geographic area.
Choropleth maps use different colors or patterns to represent different values or categories, flowline maps show the movement of objects or phenomena along routes, and graduated symbol maps use symbols of different sizes to represent varying quantities or intensities.