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9DC Plants Photosynthesis and Plants For Food Multiple Choice Test is a document available to read on EtoBox.
Plant photosynthesis produces nitrates, carbon dioxide and sugars. Weeds compete with crops for light, water and nutrients. Pesticides kill insects, have been found in the bodies of birds. Plants grow well in greenhouses because a the temperature can be kept higher, giving a longer growing season B more plants can be grown together c more oxygen can be added to the air to help the plants grow.
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