Which of the following is an example of a chemical hazardous material?

Cadmium is classified as a chemical hazardous material due to its toxic properties when it is ingested or inhaled, and its potential to cause environmental pollution. It is a heavy metal that can accumulate in the body over time, leading to serious health issues such as kidney damage and lung cancer. The classification of cadmium as hazardous stems from its use in various industrial applications, including batteries, pigments, and coatings, where it poses risks both in terms of human health and environmental impact.

In contrast, human hair, glass or metal, and soil from crops do not typically fall under the category of chemical hazardous materials. Human hair is a biological material that does not present chemical hazards. Glass and metal, while they can be physically dangerous if broken or used improperly, are not inherently chemical hazards. Soil from crops can contain contaminants, but it is not considered a hazardous material in the same context as a toxic chemical like cadmium.