Answer:
biological - bacteria, viruses, insects, plants, birds, animals, and humans, etc.,
chemical - depends on the physical, chemical and toxic properties of the chemical,
ergonomic - repetitive movements, improper set up of workstation, etc.,
physical - radiation, magnetic fields, pressure extremes (high pressure or vacuum), noise, etc.,
psychosocial - stress, violence, etc.,
safety - slipping/tripping hazards, inappropriate machine guarding, equipment malfunctions or breakdowns.
