Across
- 4. Main reason for pollution in cities
- 6. Natural disaster due to heavy rain
- 8. Fuel like coal and petrol
- 10. Main gas responsible for global warming
- 12. Rise in ocean water level
- 13. Energy from sun, wind, water
Down
- 1. Lack of water due to climate change
- 2. Process of planting trees
- 3. Increase in Earth’s temperature
- 5. Short form of Carbon Dioxide
- 7. Layer that protects Earth from sun rays
- 9. Melting of _ caps due to warming
- 11. Cutting of trees on large scale