Which of the following statements is true?
A) If a substance is toxic, its toxicity is highly dependent on its form and where it is present in the environment.
B) If a substance is toxic, it is equally toxic regardless of its form or where it is present in the environment.
C) The most important factor in the toxicity of a substance is the route by which it enters our bodies.
D) The most important factor in the toxicity of a substance is its persistence in the environment.
E) None of these statements are true.

Question

Quizplus · Accepted Answer

The toxicity of a substance is highly dependent on its form and where it is present in the environment. For example, mercury is toxic when it is in the form of methylmercury found in fish, but not in its elemental form. Similarly, asbestos is only toxic when it is airborne and inhaled, but not when it is present in a solid form. Therefore, statement A is true. Statements B, C, D, and E are incorrect.

Which of the Following Statements Is True