Fill in the Blanks EnvironmentOnline version Fill in the blanks with words related to the environment by Ana Paula Pereira 1 deaths developing developing chemicals clean contaminated deaths no pollutants Pollution is an environmental concern for people throughout the world . One university study suggests that in the water , air , and soil cause up to 40% of the premature in the world's population . The majority of these occur in countries . Water in many countries is contaminated with toxic , also known as toxins . The World Health Organization ( WHO ) estimates that 1 . 1 billion people have little or access to water . In many of these regions the water that is used for drinking , cooking , and washing is the same water that is used for dumping sewage and hazardous waste . Most developing countries cannot afford water treatment facilities . Approximately 80% of infectious diseases in the world are caused by water .
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