It is okay to flush leftover meals down your toilet.
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As lifespan improved and infant mortality decreased, the rate of population growth accelerated. In the middle of the five-year period in which the population growth rate peaked, scientist Paul Ehrlich published an influential book, "The Population Bomb".
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You may doubt a broken sewer pipe under your garden if you see which of these?
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After heavy rain, city hospitals usually see a rush of which of these?
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There are also dangerous chemicals in the sewers. Besides cleansing products, where do those come from?
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Utilized coffee grounds are right to flush down the toilet and even help with de-clogging.
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Plague decreased Europe's population by one third in the fourteenth century. World War II decreased the population of Ukraine by nineteen percent. Since 1970 the birth rate has declined. What is the major cause for a drop in birthrate worldwide since 1970
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Some sewage treatment plants do find which precious resources in ash from burned sludge?
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What causes strange gurgling noises when you flush the toilet?
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If they weren't so tough to remove, fatbergs could be a good source of what?
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