(4) With the exception of hoses used to extinguish fires, any hose connected to. a fire hydrant must be equipped with either an approved backflow prevention. device or an approved four (4) inch air gap, unless in the Department's opinion, the application does not pose a backflow hazard, such as watering a community.
What was most likely the cause of Marie Curie's leukemia? a. Radiation c. Pollution b. Smoking d. Genetics. a. Radiation was most likely the cause of Marie Curie's leukemia.
Leukemia risk factors. GENERAL. Gender: Men are more likely to develop CML, CLL and AML than women. Age: The risk of most leukemias, with the exception of ALL, typically increases with age. GENETICS. Family history: Most leukemias have no familial link.