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Relative density. Fluid mechanics. A metal ball with a relative density greater than one sinks in water, while a leather ball with a relative density less than one floats on the surface of the liquid
Portrait of beautiful fashion woman with bob hairstyle. Flying hairs up. Gray background
For sale sign in front of an affordable three storey apartment building. A medium density residential building on the real estate market.
World population on political map with scale, borders and countries
Low-density two story private homes with large lot size and green grassy lawns in summer season. Rural residential suburbs with upscale suburban houses outside of Rochester, New York

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