The health effects of drinking contaminated water can range from no physical impact to severe illness or even death. Some of the effects of drinking contaminated water can be immediate, or not noticed for many years. These include gastrointestinal and stomach illnesses like: nausea.
My Answer: The death rate begins to fall, but birth rates remain high for a time. Why?: Many of our countries are in Stage 2, that is why the government is concerned about our overpopulation. Hope I helped! :D