PUZZLE ONE

2. monitor people who have been exposed to a chemical at some time in the past.
3. how long a chemical remains in the environment.
7. monitor people who might become exposed to harmful chemicals in the future.
10. the statistical likelihood of an event occurring and the probability of that event causing harm.
11. is any discarded solid material, such as garbage, refuse, or sludges.
12. an increased concentration of a chemical within an organism over time.
13. are chemicals that disrupt the nervous system.
15. are chemicals that cause cancer.
17. cannot be broken down by biological processes.
19. is the waste produced by households and businesses.
20. It is getting harder to dispose of the waste we create because the human population continues to grow, while available land decreases.

1. chemicals that interfere with the normal functioning of hormones in an animal’s body.
4. when two risks come together and cause more harm that one would. For example, the health impact of a carcinogen such as asbestos can be much higher if an individual also smokes tobacco.
5. Making a judgment of the relative risks of various decisions.
6. the increase in a chemical concentration in animal tissues as the chemical moves up the food chain.
8. is a material that can be broken down by biological processes.
9. In 2001, a group of 127 nations gathered in Stockholm, Sweden, to reach an agreement on restricting the global use of some chemicals.
14. chemicals that cause allergic reactions.
16. are chemicals that interfere with the normal development of embryos or fetuses.
18. probability of being exposed to a hazard X probability of being harmed if exposed.