Which of the following is an example of an immediate effect after exposure to toxic materials?

The choice of vomiting as an example of an immediate effect after exposure to toxic materials is accurate because vomiting often occurs as a direct response to ingesting or inhaling harmful substances. This reflexive action helps the body to expel the toxins quickly, thereby mitigating further absorption and potential harm. Immediate effects of toxic exposure generally manifest shortly after contact with the substance, and symptoms like vomiting can occur within minutes to hours.

While skin itchiness and respiratory issues can also arise from toxic exposure, they may not always present themselves as immediate reactions depending on the individual and the specific substance involved. In contrast, cancer is a long-term consequence of exposure, emerging over years rather than as an immediate response. Thus, vomiting is recognized as one of the most rapid physiological reactions following exposure to toxic agents.