| Hint | Answer | Extra Heading |
| What is the most preventable major cause of suffering and premature death among adults? | |
| Secondhand smoke is also known as | |
| Tobacco has killed how many people between 1950-2004 | |
| The possibility of suffering harm from a hazard that can cause injury, disease, death, economic loss, or environmental damage | |
| The scientific process of estimating how much harm a particular hazard can cause to human health | |
| Involves deciding whether or how to reduce a particular risk to a certain level and at what cost | |
| Examples are unsafe working conditions, smoking, drugs, drinking, and criminal assault | |
| Examples are ionizing radiation, fires, tornados, and hurricanes | |
| | Hint | Answer | Extra Heading |
| Harmful chemicals in the air, soil, water, and food | |
| Measures how harmful a substance is in causing injury, illness, or death to a living organism | |
| The amount of a substance a person has ingested, inhaled ,or absorbed through the skin | |
| When some molecules are absorbed and stored in specific organs or tissues at higher than normal levels | |
| When levels of some potential toxins in the environment are magnified as they pass through food chains and webs | |
| A chemical that adversely affects the health of a living human or animal by causing injury, illness, or death | |
| The amount received in one dose that kills 50% of the animals in a test population | |
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