The lake was contaminated with waste from the nearby factory. - made unclean, containing chemicals, poison, or other harmful substances, I fitted the filter to the tap to remove some of the chemicals - a device that can clean things that pass through it, If drinking water isn't sterile, it can cause stomach problems. - completely clean or free of germs, The dangerous chemicals were absorbed through tiny pores. - holes, When you have diarrhea, it's important to drink plenty of water. - a medical condition that causes stomach pain and frequent production of liquid rather than solid waste, Viruses are typically 20-400 nanometers when measured around the middle.. - one thousand-millionth of a meter,
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Keynote Advanced Unit 6
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