Final answer:
The cost of safe disposal is one of the greatest expenses involved with the use of hazardous materials in industry.
Step-by-step explanation:
The correct answer to the question is Option 1: Cost of safe disposal.
One of the greatest expenses involved with the use of hazardous materials in industry is the cost of safe disposal. Hazardous waste must be carefully managed and disposed of to prevent harm to human health and the environment. This includes the cost of treating, storing, and disposing of hazardous waste in a way that meets environmental regulations and protects public safety.
For example, hazardous waste may need to be transported to specialized facilities that are equipped to handle and dispose of these materials safely. The cost of building and maintaining these facilities, as well as the cost of complying with environmental regulations, can be significant.