Photosynthesis

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Across
  1. 2. Main ingredient in Sweets, Fizzy Drinks, etc.
  2. 4. H20
  3. 6. Breath Out
  4. 7. Used in illuminations
  5. 8. Breath in
Down
  1. 1. Keeps us warm and healthy
  2. 3. A green substance you can find in various plants
  3. 5. Use an average to get this