1. According to the article environmental health is important because the environment __ . a. Is not related to medical science b. Has no effect on plants C. Affects nearly every aspect of human life d. Is only concerned with pathogens 2. From paragraphs 45, which terms provide the best description of a toxin? 1. Poisonous II. Not dangerous III Long-lasting a. I only b. I and II C. II and III d. I and III 3. The purpose of a water treatment plant is to a. Purify water b. Carry away water C. Cure water borne illness d. Carry chemicals underground 4. One major concern with air pollution is ozone. It is so dangerous because it is __ a. Colorless and odorless b. Helps with asthma C. Cures emphysema d. Can be easily seen 5. One concern in large cities are heat waves. Why would this be a concern for the elderly? I.They have heart and respiratory issues II. They live in small apartments III. They have a weakened immune system a. I only b. I,II, and III C. I and III d. III only