Unit 8 Vocab pt. 3

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Across
  1. 1. A situation in which two risks together cause more harm than expected based on the separate effects of each risk alone.
  2. 6. A study that monitors people who might become exposed to an environmental hazard, such as a harmful chemical, at some time in the future.
  3. 10. A component of a septic system, made up of underground pipes laid out below the surface of the ground.
  4. 11. The highest concentration of a chemical that causes no lethal or sublethal effects.
  5. 12. The effective dose of a chemical that causes 50 percent of the individuals in a dose-response study to display a harmful, but nonlethal, effect.
  6. 14. A relatively small and simple sewage treatment system, made up of a septic tank and a leach field, often used for homes in rural areas
  7. 17. A principle based on the belief that when a hazard is plausible but not yet certain, we should take actions to reduce or remove the hazard.
  8. 20. A situation in which a pathogen causes a rapid increase in disease
  9. 21. A study that monitors people who have been exposed to an environmental hazard, such as a harmful chemical, at some time in the past.
  10. 22. Any impaired function of the body with a characteristic set of symptoms.
  11. 23. A study that exposes animals or plants to different amounts of a chemical and then looks for a variety of possible responses, including mortality or changes in behavior or reproduction.
Down
  1. 2. Anything in the environment that can potentially cause harm
  2. 3. A 2001 agreement among 127 nations concerning 12 chemicals to be banned, phased out, or reduced.
  3. 4. A layer of fairly clear water found in the middle of a septic tank
  4. 5. A disease that slowly impairs the functioning of a person’s body.
  5. 7. Solid waste material from wastewater.
  6. 8. A principle based on the belief that a potential hazard should not be considered an actual hazard until the scientific data definitively demonstrate that it actually causes harm.
  7. 9. An experiment that exposes organisms to an environmental hazard for a short duration.
  8. 10. The lethal dose of a chemical that kills 50 percent of the individuals in a dose-response study
  9. 13. A large container that receives wastewater from a house as part of a septic system
  10. 14. The effect of an environmental hazard that does not kill an organism but which may impair an organism’s behavior, physiology, or reproduction.
  11. 15. A 2007 agreement among the nations of the European Union about regulation of chemicals; the acronym stands for registration, evaluation, authorization, and restriction of chemicals.
  12. 16. A disease that rapidly impairs the functioning of a person’s body.
  13. 18. A disease caused by a pathogen.
  14. 19. An experiment that exposes organisms to an environmental hazard for a long duration.