Across
- 3. What is the theme of World Earth Day 2023?
- 5. Which planet in our solar system has the most moons?
- 6. Which day is celebrated as World Earth Day?
- 7. What is the name of the largest volcano in our solar system, located on Mars?
Down
- 1. Who proposed the idea of Earth Day first?
- 2. Renewable source of Energy
- 4. In which country was the first environment school established?