1) What three items do plants use during photosynthesis? a) Sun, soil, and oxygen b) Water, sun, and carbon dioxide c) Water, magic, and oxygen 2) What do humans breathe? a) chlorophyll b) oxygen c) carbon dioxide 3) What is photosynthesis? a) Plants make food for animals. b) Plants make their own food. c) Plants make food for humans. 4) Which part of the plant brings in water for photosynthesis? a) leaves b) roots c) flowers 5) Which part of the plant brings gases in and releases gas for the plant? a) roots b) stem c) stomata 6) When an organism makes something they do not need we call that a..... a) byproduct b) product c) extra 7) What do plants make as a byproduct in photosynthesis? a) carbon dioxide b) nitrogen c) oxygen 8) Where does the energy for photosynthesis come from? a) water b) sun c) soil 9) What air do humans breathe out? a) oxygen b) carbon dioxide c) helium

Photosynthesis

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