Answer :
Final answer:
Warning signs follow internationally recognized formats to denote hazards and are diamond-shaped with yellow backgrounds, black symbols, and red borders according to the GHS system adopted by OSHA.
Explanation:
Warning signs are typically characterized by specific colors and shapes that provide quick, visual communication about potential hazards. According to safety regulations, such as those from the Occupational Safety and Health Administration (OSHA), these signs use standardized symbols to denote various types of hazards. The correct answer to the question 'Warning signs are __________ with _________ symbols and most are ___________ shaped' is A) Yellow, Black, Diamond. This format is derived from a system set by the United Nations called the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), where pictograms are red-bordered and diamond-shaped, featuring a black graphic on a white background. These symbols quickly tell the observer about the nature of the hazard present.
