Which one of the following statements is not correct about distributional maps?

Question

Accepted Answer

Here's the explanation:

**Why Option 4 is correct:**

Option 4 states: "Isopleths are lines of unequal value." This statement is incorrect. Isopleths, by definition, are lines that connect points of *equal* value. They are used to represent continuous phenomena like temperature (isotherms), pressure (isobars), or elevation (contours). The defining characteristic of an isopleth is that all points along a single isopleth line have the same value for the variable being mapped. Therefore, the statement that isopleths represent unequal values is fundamentally wrong.

**Why the other options are incorrect:**

*   **Option 1: Choroschematic method is also known as symbol method.** This statement is generally correct. Choroschematic maps use symbols (dots, circles, etc.) of varying sizes or densities to represent the distribution of a phenomenon. This is a common characteristic of symbol maps.

*   **Option 2: Chorochromatic maps are also known as colour-patch maps.** This statement is correct. Chorochromatic maps use different colors or shades to represent different areas or categories on a map. The areas are often filled with a single color, creating "color patches."

*   **Option 3: Density of population can be shown by choropleth method.** This statement is correct. Choropleth maps use different shades or colors to represent statistical data aggregated over predefined regions (e.g., counties, states). Population density, which is a ratio (population per unit area), is a common type of data displayed using choropleth maps.