Which of the following to prevent cholera epidemics in the large industrialized cities? a. the availability of vaccinations b. an increase in the number of medical clinics c. the construction of tenement housing d. the chlorination of drinking water

your answer is A. the availability of vaccinations

this forms a narrow, steep sided inlet (sometimes deeper than 1300 metres) connected to the sea. the terminal moraine pushed down the valley by the glacier is left underwater at the fjord’s entrance, causing the water at the neck of the fjord to be shallower than the main body of the fjord behind it.