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MATCHING – In the space provided, write the letter of the description that best matches the term or phrase. ______ 1. Scientists use this to determine how to keep a disease from spreading.______ 2. People breathe this into their lungs.______ 3. A person is exposed to this amount of a chemical.______ 4. Scientists use this to study the harmful effects of pollutants on organisms.______ 5. Process used to estimate the harm that might be caused by a substance. a. toxicologyb. epidemiologyc. dosed. particulatee. risk assessment MULTIPLE CHOICE - In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. ______ 6. Pollutants caused by poor sanitation that can lead to gastrointestinal infections includea. bacteria in food.b. pesticides in food.c. lead in water.d. All of the above ______ 7. All of the following are natural causes of pollution excepta. dust storms.b. volcanoes.c. wildfires.d. vehicle exhaust. ______ 8. Air pollution is a major health problem caused by the burning of fuels ina. vehicles.b. home furnaces.c. power plants andfactories.d. All of the above ______ 9. Much of the pollution in the environment is a result ofa. the use of too much water.b. the use of landfills.c. inadequate waste disposal.d. inadequate pollution-control devices in industry. ______10. Most of the cases of organophosphate poisoning occur in people who area. applying the chemical to crops.b. eating fruits and vegetables with chemical residues.c. inhaling the chemical while working in gas stations.d. working in factories with various chemicals
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