Uncovered lightbulbs may expose food to which type of hazard ?

Physical Hazard

Explanation:

An hazard is defined as something or a substance that by itself or due to its interaction or combination with another substance has the potential to cause harm.

We have 3 types of hazards.

a. Physical Hazard: This has to do with substances such as: uncovered light bulbs

b. Chemical Hazard: This has to do with chemical substances e.g. Acids, Bases, Pesticides, radioactive substances, e.t.c.

c. Biological Hazard: For example microorganisms such as Viruses, Bacteria and Fungi

Uncovered light bulbs may expose foods to physical hazard such as if the light bulbs get shattered , the presence of broken light bulb shards in food is very harmful.