Question

1. all are methods for disposal of hazardous wastes except ____.

controlled incineration
waste exchange
deep - well injection
sanitary landfills

Explanation:

Controlled incineration, deep-well injection, and sanitary landfills are established methods for hazardous waste disposal. Waste exchange is a practice of transferring waste to another party for reuse or recycling, not a disposal method.

Answer:

O waste exchange