Across
- 4. to preserve something
- 5. when it does not rain for a long time
- 8. change the long-term alteration of Earth's climate
- 10. energy energy from a source that is never finished
- 13. when you cut all the trees in the forests
- 14. a material, a substance or a product eliminated by humans
Down
- 1. when it rains a lot and it creates inondations
- 2. out when you separate your waste
- 3. the presence of a harmful substance in our environment
- 6. effect the gases which increase our planet temperature
- 7. warming the increase of temperature on our planet
- 9. rain atmospheric pollution in the rain
- 11. the name of our planet
- 12. the attitude to protect our planet