(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.
The condition is caused by one of the following: Vitamin B 12 deficiency caused by a lack of intrinsic factor in gastric (stomach) secretions--intrinsic factor is necessary for absorption of vitamin B 12. This type of B 12 deficiency anemia is technically pernicious anemia.nstead of being round or disk-shaped, the red blood cells can be oval. Vitamin B 12 deficiency anemia and folate deficiency anemia are the most common causes of megaloblastic anemia. Pernicious anemia is a subtype of B 12 deficiency.