REHS exam| 240 Questions| With COMPLETE Solutions

1. A factor or agent which increases the risk of cancer is known as a a. teratogen b. mutagen c. carcinogen d. fomite correct answer: carcinogen 2. The four major causes of death among all age groups of Americans include all of the following except. a. homicide b. accidents c. malignant neoplasms d. heart disease correct answer: homicide 3. In recent years, the largest number of rabies cases were associated with a. skunks b. bats c. dogs d. raccons. correct answer: skunks 4. Asbestosis is caused by fine silicate fibers retained in the a. kidneys b. lungs c. colon d. abdomen correct answer: lungs 5. An illness due to a specific infectious agent or its toxic product which is transmitted from a reservoir to a susceptible host either directly or indirectly is called a. an infectious disease b. a communicable disease c. a genetic disease d. a noncommunicable disease correct answer: a communicable disease 6. Rocky mountain spotted fever is spread by a. flies b. spiders c. cockroaches d. ticks correct answer: ticks 7. Mycotoxins are poisonous chemicals produced by a. bacteria b. vertebrates c. viruses d. fungi correct answer: fungi 8. The study of the occurrence, frequency, and distribution of disease is a. entomology b. biology