(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.
Macrocytosis Causes. The causes of macrocytosis may be basically grounded in the deficiency of folic acid and vitamin B 12 in the blood that are actually responsible for the formation of red blood cells. A more effective analysis of the causes of the same may reveal the exact causes of the same.ome of the hematologic causes of macrocytosis actually incur due to problems associated with the bone marrow and blood. Some of them include myelodysplasia, leukaemia, myelofibrosis, and pernicious anaemia. Digestive or gastrointestinal problems such as Crohnâs disease and Celiac disease cause macrocytosis.