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Aquaculture: the cultivation of sea animals and plants for food. Aquaculture is threatening food security because the food fed to the fish imposes a strain on grain stocks
Cash crop: A plant grown for its financial value and not use. This is damaging food security because the prospect of revenue overtakes the effects on food production
Biofuel: Living matter such as corn that is used as fuel.Food security is threatened by this practice because the world's food is being used for fuel when it should be used to feed people living in food insecure places.
Urban growth is affecting food security by making less land available for farming and therefore less food grown
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