A hazard is anything that could cause harm. And, A hazard refers to anything with the potential to cause harm, damage, or adverse effects to people, property, the environment, or any other entity.
Hazards can be physical (e.g., fire, electricity), chemical (e.g., toxic substances), biological (e.g., pathogens), ergonomic (e.g., repetitive motion), or psychosocial (e.g., stress).
Risk, is part of everyone's life. For example, there is a risk of injury due to traffic accidents when we go out onto the street. Also, when we put money in a bank, there is a risk of not being able to retrieve it if the bank goes bankrupt.