A substance poisonous to humans by interfering with normal body physiology is called which of the following?

A substance poisonous to humans by interfering with normal body physiology is called which of the following?

• A. Hazardous Substance
• B. Hazardous Waste
• C. Toxic Substance
• D. Lethal Dose

Answer: (C)

This question tests how we name substances by their effect on the human body. A substance that is poisonous because it interferes with normal physiological processes is called a toxic substance. The key idea is the specific impact on body systems that leads to harm. A hazardous substance describes potential to cause harm, but not necessarily that it is poisonous or how it harms the body. Hazardous waste refers to waste materials that pose risks and require special handling or disposal, not to the intrinsic property of being toxic. Lethal dose is a measurement of how much of a substance is sufficient to cause death, not the classification of the substance itself. So the best fit is toxic substance.

This question tests how we name substances by their effect on the human body. A substance that is poisonous because it interferes with normal physiological processes is called a toxic substance. The key idea is the specific impact on body systems that leads to harm.

A hazardous substance describes potential to cause harm, but not necessarily that it is poisonous or how it harms the body. Hazardous waste refers to waste materials that pose risks and require special handling or disposal, not to the intrinsic property of being toxic. Lethal dose is a measurement of how much of a substance is sufficient to cause death, not the classification of the substance itself. So the best fit is toxic substance.