Question

Since the 1970s, many changes in waste disposal have taken place. Recycling has become a regular part of garbage pick-up. In some places it is mandatory. Compost pick-up, clean incineration, and proper disposal in high-tech, environmentally-friendly industrial centers is common practice for industrialized nations. This is not true in other parts of the world where poor waste management practices are still in use.

Incineration and landfills are the most widely-used waste management methods. Incineration is the burning of garbage and is favored by small countries that lack adequate landfill space. This method can, however, have a major impact on the environment. What is a possible problem with incineration of waste materials as a method of disposal?
Responses
A The burning releases too much heat into the atmosphere.The burning releases too much heat into the atmosphere.
B Burning creates solid waste that is difficult to handle.Burning creates solid waste that is difficult to handle.
C There are too many types of materials that are not flammable.There are too many types of materials that are not flammable.
D Burning certain materials could release toxic gases into the atmosphere.

Answer 1

D. Burning certain materials could release toxic gases into the atmosphere — incineration can emit pollutants (dioxins, furans, heavy metals, acid gases) that harm air quality and health.