What is one key reason for marking hazardous areas in the shop?

Marking hazardous areas in the shop primarily serves to alert workers to potential dangers. This is crucial for maintaining a safe working environment, as it provides a visual warning that helps personnel recognize where hazards exist. High-visibility markings such as signs, paint, or barriers can indicate areas where accidents are more likely to occur due to the presence of moving machinery, chemicals, or other risks. By clearly identifying these zones, workers can take extra precautions while navigating these areas, thereby reducing the likelihood of injuries and enhancing overall safety in the workplace. It's not merely about aesthetics or organization; rather, the marking is an essential safety measure that directly contributes to the well-being of all employees.