Which of the following materials should NOT be disposed of in municipal solid waste? 

The material that should NOT be disposed of in municipal solid waste is "Hazardous waste."

Hazardous waste includes materials that are flammable, corrosive, reactive, or toxic, and can pose a threat to human health and the environment. Examples of hazardous waste include batteries, fluorescent light bulbs, electronics, pesticides, and chemicals.

Disposing of hazardous waste in the municipal solid waste can lead to contamination of soil and groundwater, air pollution, and potential harm to waste management workers.

Proper disposal of hazardous waste typically involves taking it to a specialized facility where it can be safely treated or disposed of. Many communities have hazardous waste collection events or drop-off locations available to residents for the safe disposal of these materials.