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How Hydroponics Works
home.howstuffworks.com/lawn-garden/professional-landscaping/hydroponics.htm
Hydroponics is the practice of growing plants without soil. Learn more about how hydroponics uses water as the nutrients for plants.
How Japanese Traditions Work
people.howstuffworks.com/culture-traditions/national-traditions/japanese-tradition.htm
Many Japanese traditions go back for hundreds of years. Find out about Japanese traditions at HowStuffWorks.