Monday Crossword Puzzle - "Earth Day Basics"

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Across
  1. 3. Term for the gradual increase in Earth's average temperature
  2. 6. Action to reduce waste by using items again
  3. 8. Gas responsible for global warming
  4. 9. Symbol of recycling consisting of three arrows
  5. 10. Organization credited with founding Earth Day in 1970
Down
  1. 1. Material commonly used for single-use water bottles
  2. 2. Method of reducing energy consumption by turning off lights and appliances
  3. 4. The date Earth Day is celebrated annually
  4. 5. Natural satellite of Earth
  5. 7. Type pf pollution caused by burning fossil fuels