Energy in food

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Across
  1. 2. A gas given out by plants when they make food
  2. 5. A process where plants make food
  3. 7. a gas taken in by plants when they make food
  4. 8. Another word for food made by plants
  5. 9. Living things carry out these processes such as respiration
Down
  1. 1. Another name that plants are also known as
  2. 3. Excess food is converted to this substance
  3. 4. Also known as green pigment
  4. 6. Tiny openings found on leaves