Treating a city's water supply to remove any bacteria and impurities as clean and hygenic water supplies benefits the public/society.
Explanation:
can you please rearrange the question?
True. The left side of the heart receives oxygenated blood from the pulmonary vein and pumps it into the aorta, while the right side of the heart receives deoxygenated blood from the vena cava and pumps it into the pulmonary vein.
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Explanation:
Ageing or aging (see spelling differences) is the process of becoming older. ... In the broader sense, ageing can refer to single cells within an organism which have ceased dividing (cellular senescence) or to the population of a species (population ageing).
Old age, also called senescence, in human beings, the final stage of the normal life span. ... For statistical and public administrative purposes, however, old age is frequently defined as 60 or 65 years of age or older.
