Final answer:
Explosive, flammable aerosols, oxidizing gases, and materials under pressure are examples of chemical hazards.
Step-by-step explanation:
Explosive, flammable aerosols, oxidizing gases, and materials under pressure are examples of chemical hazards. These substances can be dangerous and pose a risk of fire, explosion, or other types of hazardous reactions. It is important to handle and store them properly to prevent accidents and ensure safety.