(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.
VHL is caused by an abnormal change in a gene on chromosome 3 which normally functions to produce a protein that acts as a suppressor of tumor growth. This gene mutation, which is passed on from parent to child, results in the uncontrolled growth of some capillaries. Capillaries are tiny blood vessels.