(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.
Megaloblastic anemia, the most common cause of macrocytic anemia, is due to a deficiency of either vitamin B 12, folic acid, or both. Deficiency in folate or vitamin B 12 can be due either to inadequate intake or insufficient absorption. Folate deficiency normally does not produce neurological symptoms, while B 12 deficiency does.