Question

Why are placards used?

1) So hazardous materials are not mixed with food.
2) It is the law.
3) To communicate the risk.

Answer 1

Placards are used to communicate the risk associated with hazardous materials and prevent mixing with food. It is required by law in many developed countries.

Step-by-step explanation:

Placards are used to communicate the risk associated with hazardous materials. The use of placards is important because it helps to ensure that hazardous materials are not mixed with food, preventing potential health risks. Additionally, using placards is required by law in many developed countries to promote safety and protect individuals and the environment from the dangers of hazardous materials.