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Beaker with pure water and egg sank inside and beaker with salt water and egg floating inside
HDPE. Transparent Polyethylene granules.Plastic pellets. Plastic Raw material .High Density Polyethylene (PE-HD), PE-LD. IDPE
HDPE. Transparent Polyethylene granules.Plastic pellets. Plastic Raw material .High Density Polyethylene (PE-HD), PE-LD. IDPE
Overcrowded residential towers in a housing estate in Quarry Bay, Hong Kong. Crowded narrow apartments in a community in HK, an issue of high housing density and housing shortage due to overpopulation
Density of 2 different materials in a beaker. One object floating and one sinking.

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Festive complex multicolored abstract on whiteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/festive-complex-multicolored-abstract-white-228803689">Image used under license from Freestock.com</a>
Multicolored pointillist abstract for decoration and backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/multicolored-pointillist-abstract-decoration-background-247966462">Image used under license from Freestock.com</a>
Abstract illustration of a cloud of bubbles or balloons rising from solid bars, in black and whiteImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/abstract-illustration-cloud-bubbles-balloons-rising-230542693">Image used under license from Freestock.com</a>
Complex abstract of thin outlines of various shapes and sizes, like myriad microorganisms, on black backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/complex-abstract-thin-outlines-various-shapes-235550089">Image used under license from Freestock.com</a>
Light gray particle board for background or textureImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/light-gray-particle-board-background-texture-39360694">Image used under license from Freestock.com</a>
Low-angle view of corn fieldImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/lowangle-view-corn-field-33528262">Image used under license from Freestock.com</a>
HayImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/hay-1749356">Image used under license from Freestock.com</a>
Luxuriant ornamental grass in summer (close-up): texture of crisscrossing linesImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/luxuriant-ornamental-grass-summer-closeup-texture-10735093">Image used under license from Freestock.com</a>
Gray exterior wall of engineered woodImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/gray-exterior-wall-engineered-wood-1974209">Image used under license from Freestock.com</a>

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