Answer anyone of them, get 20 poins!!(40 points total) but I want correct answer
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Sewage is what enters the sewerage system from household bathrooms, toilets, kitchens, laundries and drains, or from businesses and industry. It is approximately 99.6%
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Physics is the natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves.
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