(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.
Marie Curie is one of the most famous scientists that ever lived. Her contributions such as the discovery of Radium and other key elements help us out every day, especially when getting an x-ray. Manya,as she was called, was born Maria Sklodowska in Warsaw, Poland on November 7, 1867. Maria was only eight when her oldest sister caught typhus and died. That death was followed less than three years later by the death of her mother, Madame Sklodowska, who lost a five-year battle with tuberculosis at the age of 42.