Across
- 2. Which President signed the Paris Agreement?
- 5. Who is credited with founding Earth Day?
- 8. When is Earth Day?
- 10. When did Earth Day start to be celebrated Globally
Down
- 1. What region on Earth produces 20% of the planet's oxygen?
- 3. Most of Earth's breathable air comes from where?
- 4. A single tree produces enough air to supply in its lifetime for how many people for a year?
- 6. In 1970, students at Florida Technological University held a mock trial for what, accusing it of air pollution?
- 7. How many countries (so far) have celebrated Earth Day?
- 9. was the second-hottest year on record worldwide?