Answer:
○ chemical treatment and surface impoundment
○ chemical treatment and landfilling
Step-by-step explanation:
We have no proof of this being multi-select or multiple choice, but if it was multiple choice, then I would go with the top option.
Chemical, thermal, biological and physical procedures can treat dangerous waste. Chemical techniques include exchange of ions, rainfall, oxidation, reduction, and neutralization. High-temperature incineration is part of heat techniques that cannot only detoxify, but kill certain organic waste.
Good luck to you with this exercise, and as always, I am joyous to assist anyone at any time.