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CACTUS is a design that supplies water to crops by collecting water from the air. The aim is to solve the problem that crops in arid regions of Africa are difficult to survive due to lack of water. By tailoring a botanical private water collector for crops, we collect the water from the air every day, and infuse the water into the crops itself to help the crops grow forward and support the crops to grow strong roots. CACTUS consists of degradable materials. When the crops grow strong enough, CACTUS will retreat and slowly degrade into the nutrients needed by the crops.