Which graphic indicates that entry for certain activities is prohibited?

The graphic that indicates entry for certain activities is prohibited is typically represented by a yellow circle. This symbol is often standardized in various contexts, including parks and recreational areas, to signify caution or to indicate that certain activities are not allowed in that area. The use of yellow is particularly effective in drawing attention and signaling that there are restrictions or hazards present.

While other graphics may denote different messages — such as green circles indicating permitted activities or positive actions, and red squares often signifying strong warnings or prohibitions in more general contexts — the yellow circle is specifically associated with the prohibition of certain activities. Thus, it effectively communicates to visitors that they should not engage in specified behaviors within the area marked by this graphic.