Answer :
Final answer:
Warning signs are typically diamond-shaped, a design chosen for its visibility and effectiveness in conveying caution or warning about potential hazards on roads and in workplaces.
Explanation:
The question asks: Warning signs are usually _____-shaped. The correct answer is C. diamond. Warning signs on the road are generally diamond-shaped. This shape is used globally to attract attention and convey caution or warning about potential hazards. For instance, pictograms within red-bordered, diamond-shaped signs are utilized to denote hazards, such as those mandated by the Occupation Safety and Health Administration (OSHA) for product safety labels. This design approach ensures that the signs are easily noticeable and understandable by drivers and pedestrians alike, enhancing safety on roads and workplaces.
