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In very early human history, complex sanitation systems were not needed because settlements were usually very small, like the village below. However, as cities became larger and population densities increased, one major advancement was the development of which helped to channel waste waters away from human populations more effectively than in the past
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14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream
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What effect might melting sea ice have for people who live in coastal areas?
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Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
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In very early human history, complex sanitation systems were not needed because settlements were usu...
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