Occupational and Environmental Health Practice Exam 2026 – Your Comprehensive All-In-One Guide to Mastering Disease and Injury Prevention!

Substituting a hazardous substance with a seemingly safer one can create potential risks. While the substitute may appear to be safe, it may also have harmful effects. This means that even though it may not be as hazardous as the original substance, it can still pose a risk to human health and the environment. This is why it is important to thoroughly research and assess the potential risks and consequences before making a substitution. The other options listed as potential risks, such as the substitute being less effective, expensive, or difficult to find, do not directly relate to the potential of the substitute also being hazardous. While these risks may also be valid concerns, they do not address the main concern of substituting with a seemingly safer substance that can still pose a threat. Therefore, option C is the most correct and relevant answer.