Which of the following is true regarding the use of a sharp knife or scissors?

Using a sharp knife or scissors to open paper or cardboard containers is a proper technique because these materials are typically designed to be easily cut or opened without causing damage or spillage. When using sharp tools for this purpose, practitioners can ensure that they gain access to the contents without compromising the integrity of the packaging. This method helps maintain safety and reduces the risk of exposure to any substances contained within.

In the case of opening other types of containers, such as plastic or metal, alternative methods or tools may be more appropriate to prevent accidents and ensure safe handling. Different materials require different handling techniques to avoid the potential for dangerous spills or injuries.