Index contour frequency affects how often labeled contours appear. Which option represents this control?

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Multiple Choice

Index contour frequency affects how often labeled contours appear. Which option represents this control?

Index contour frequency controls how often contour lines are labeled on a map. In topographic/cartography labeling, only certain contour lines—the index contours—get labels. By setting the index contour frequency, you decide how many lines separate each labeled line. For example, if you choose every fifth line, you’ll see a label on every fifth contour line; increasing the frequency means fewer labeled lines, and decreasing it means more labeled lines. The other options don’t control labeling: contour interval sets the spacing between all contour lines, index contour line weight changes how thick the labeled lines are, and coloring by elevation affects visual color rather than how often labels appear.

Index contour frequency controls how often contour lines are labeled on a map. In topographic/cartography labeling, only certain contour lines—the index contours—get labels. By setting the index contour frequency, you decide how many lines separate each labeled line. For example, if you choose every fifth line, you’ll see a label on every fifth contour line; increasing the frequency means fewer labeled lines, and decreasing it means more labeled lines. The other options don’t control labeling: contour interval sets the spacing between all contour lines, index contour line weight changes how thick the labeled lines are, and coloring by elevation affects visual color rather than how often labels appear.

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