How are solid wastes defined in relation to hazardous wastes?

Solid wastes are typically defined as any discarded materials, which can include a wide range of items, such as household garbage or industrial scraps. While the classification of solid wastes excludes certain types of waste that are classified as hazardous, it is essential to understand that solid wastes can also take the form of liquid or gas in some scenarios, but they are predominantly in a solid state.

In this context, the correct choice highlights that solid wastes are not necessarily classified as hazardous, and they can indeed exist in different states. This option indicates a broader understanding of waste types beyond the typical solid form while clarifying that not all solid wastes qualify as hazardous. This understanding is crucial for appropriate waste management practices.

The other choices present misunderstandings or inaccuracies regarding the nature of solid wastes and their relationship to hazardous materials. For instance, stating that solid wastes are safe and do not require specific disposal methods oversimplifies the complexities of waste management. On the other hand, suggesting that they include all materials regardless of hazard ignores the legal definitions that categorize wastes based on their risk to health and the environment. Lastly, the assertion that solid wastes must always be disposed of in special containers misrepresents the varied disposal methods that may or may not be necessary depending on the specific nature of the