Rehs exam qa Study guides, Class notes & Summaries

Tapeworm infection is probably due to: - Answer- echinococcus most outdoor air emissions are derived from - Answer- transportation indoor air quality depends on - Answer- sources of air pollution in the building, sources of pollution outside the building, and the exchange of air between the inside and outside the total amount of oxygen demand in a sample (in mg/L) as measured by a specific strong chemical oxidation procedure is called the: - Answer- COD a black light is used by food ...

Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates - Answer- clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba histolytica d. salmonella typhosa - Answer- co...

1. A factor or agent which increases the risk of cancer is known as a a. teratogen b. mutagen c. carcinogen d. fomite - 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 - Answer- homicide 3. In recent years, the largest number of rabies cases were associated with a. skunks b. bats c. dogs d. raccons. - Answer- skunks 4. As...

The greenhouse effect is primarily caused by what pollutant? a) sulfur oxides b) carbon dioxide c) nitrogen oxides d) particulates - Answer- b) carbon dioxide Which of the following is not required at public pools? a) self-locking fence b) depth markers c) phone d) maximum occupancy sign - Answer- c) phone 90 degrees Fahrenheit is how many degrees Celsius? a) 90 b) 32 c) 42 d) 18 - Answer- b) 32 90F - 32 = 58 58 * 5 = 290 290 / 9 = 32.22 What is conjunctivitis cau...