Space gardens are systems to grow plants in space using hydroponics or aeroponics. They help astronauts produce fresh food, recycle air and study plant growth without gravity on spacecraft and space stations. Class 8 Vocational Education Kaushal Bodh Project 1 Hydroponics: ...
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TDS measures the amount of dissolved minerals like salts, nutrients and ions in water. In hydroponics, TDS levels help check if the plant is getting the right amount of nutrients for healthy growth. Class 8 Vocational Education Kaushal Bodh Project 1 ...