The cocoa bean is the dried and fully fermented fatty seed of theobroma cocoa.
cocoa beans are found in africa. 
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Cocoa is the plant bean from which chocolate is obtained
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cocoa plant which is fist dried then broken into fragments then fermented and then converted to powder form which is used to make chocolate syrups and bars of chocolates
Cocoa tree is grown mostly in tropical countries which produces cocoa beans made into chocolate or milo.