Carbon Cycle

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Across
  1. 5. Helps auto and factory emission
  2. 6. Harms fresh water and forests
  3. 7. CO2 out
  4. 8. Nitrogen
Down
  1. 1. Causes algal blooming
  2. 2. Changes nitrogen into something plants can use
  3. 3. How nitrogen is removed from the atmosphere
  4. 4. CO2 cycle