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Which term refers to an early system of paving roads with crushed rock and asphalt? A. concrete B. cobblestone C. corduroy D. macadam
answered
Oct 20, 2016
History
middle-school
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Will an object with a density of 0.97g/ml float or sink in water?
answered
Aug 19, 2015
Biology
middle-school
4
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185k
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