Water, electricity, and gas has been free in Turkmenistan since 1991.
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There are about 100,000 bacteria in one litre of drinking water.
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Sound travels about 4 times faster in water than in air.
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Pumice is the only rock that floats on water.
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Tap water in Canada is held to a higher health standard than bottled water.
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A portion of the water you drink has already been drunk by someone else, maybe several times over.
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Spain's capital Madrid means "place of abundant water".
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