The primary concept of hazard recognition involves identifying potential hazards in the workplace that could cause harm to workers' health and safety. This involves observing, assessing, and understanding various factors that might lead to accidents, injuries, or illnesses.The hierarchy of hazard control is a systematic approach to addressing hazards in order of effectiveness. The hierarchy consists of the following levels, from most to least effective:Elimination: Completely removing the hazard from the workplace. This is the most effective control measure.Substitution: Replacing the hazard with a less hazardous alternative.Engineering Controls: Redesigning the workplace or processes to minimize the risk. This includes ventilation systems, enclosures, or barriers.Administrative Controls: Implementing procedures, policies, and training to reduce exposure to the hazard.Personal Protective Equipment $($PPE$)$: Providing protective gear to workers to minimize their exposure to the hazard.