The burning of solid waste is not recommended becausea. It is very costlyb. It causes several environmental issuesc. It requires modern technologiesd. It requires a lot of space

The burning of solid waste is not recommended primarily because it causes several environmental issues. When solid waste is burned, it releases harmful substances into the air, including dioxins, furans, and heavy metals. These substances can have detrimental effects on the environment and human health, contributing to air pollution, climate change, and various health problems.

While the other options mentioned can also be concerns depending on the context, they are not the primary reasons why burning solid waste is generally not recommended. For instance, while the process can be costly and require modern technologies, there are also low-tech methods of burning waste that are less expensive. Similarly, while space can be a concern for waste disposal in general, burning waste actually reduces its volume, so it does not necessarily require a lot of space. Therefore, the main reason not to burn solid waste is due to the environmental issues it causes.