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Smart-Kits Free Online Jigsaw Puzzles, GRAND PRISMATIC SPRING

What you see here is an aerial view of Grand Prismatic Spring in Yellowstone National Park. The spring is about 250 by 300 feet in size. This photo shows steam rising from the hot azure blue water in the center- surrounded by huge mats of brilliant orange algae and bacteria. The bright orange color is due to the ratio of chlorophyll to carotenoid molecules produced by the organisms. During summertime the chlorophyll content of the organisms is low and thus the mats appear orange, red, or yellow. However during the winter, the mats are usually dark green, because sunlight is more scarce and the microbes produce more chlorophyll to compensate, thereby masking the carotenoid colors. Related: Jigsaw Puzzle of Peyto Lake Jigsaw Puzzle of Patagonia Full Archive of Free Jigsaw Puzzles Online