JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Hydroponic greenhouse at a hospital. Organic produce is grown hydroponically and is used in meals for patients prepared in the hospital's kitchen. Hydroponics is the cultivation of plants without soil. Instead, the roots of the plant are immersed in a trough through which nutrient-rich water trickles. Photographed at Henry Ford West Bloomfield Hospital, Michigan, USA.
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