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What is common in Yamaha with birth control?
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What plant is traditionally used for headaches?
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What is common with willow with aspirin?
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What plants contribute to digestion?
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Can plants treat cancer?
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What plant helps to fight malaria?
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What is ginseng?
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Which countries prefer grass treatments?
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What is a Amazonian Cow's Tree?
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Where does coffee come from?
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What is a bread tree?
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Where is the birthplace of wheat?
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What do chocolate do?
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What fruit is edible?
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Which plants are most important in agriculture?
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What plants produce oil?
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From which plants do sugar?
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What kind of tree gives us sweet juice?
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What do tea do?
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Where is the homeland of potatoes?
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What is papyrus?
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How do water plants pollinate?
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What do water plants give us?
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How do water plants spread their seeds?
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Why does most aquatic plants grow in shallow water?
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