How does hazardous waste differ from solid waste?

Hazardous waste is defined as any material that can pose significant threats to human health or the environment due to its chemical characteristics. This type of waste can include substances that are toxic, reactive, ignitable, or corrosive. For instance, many pesticides, heavy metals, and certain medical wastes fall into this category and require careful handling and disposal to mitigate risks to health and safety.

In contrast, solid waste consists of non-hazardous materials such as everyday household trash, food scraps, or construction debris that do not pose immediate risks to health or the environment when disposed of properly. The distinction lies primarily in the potential for hazardous waste to cause harm; this capability necessitates strict regulatory measures, special disposal methods, and additional safety precautions.

Other options do not accurately capture the nature of hazardous waste. For example, while hazardous waste can sometimes be recycled, this is not its defining characteristic. Additionally, the idea that hazardous waste is always liquid is incorrect, as it can exist in solid, liquid, or gaseous forms. Lastly, solid waste being always safe to dispose of is misleading, as some solid wastes can potentially contain harmful substances if not managed correctly.