Across
- 1. TO OVER EXPLOIT RESOURCES
- 3. A TYPE OF RENEWABLE ENERGY
- 5. GREEN HOUSE GAS
- 7. VERITY OD PLANTS AND ANIMAL SPECIES IN AN ENVIRONMENT
- 10. WHERE AN ANIMAL LIVES
- 11. A BREED OF ANIMAL
- 14. CONTAMINATION OF NATURAL THINGS
- 17. COAL AND GAS ARE THE EXPAMPLES
- 18. ATMOSPHERE CLOSE TO THE EARTH SURFACE
- 20. POPULATION OF ZERO
Down
- 2. DENSE FORREST FOUND IN TROPICAL AREAS WITH HEAVY RAINFALL
- 4. ONE OF THE R'S
- 6. HEAT ENERGY STORED IN THE EARTH
- 8. THE DESTRUCTION OF WOODLAND
- 9. THE STUDY OF WEATHER
- 12. WHEN LARGE HABITAT ARE DIVIDED INTO SMALLER ONCE
- 13. EFFORT TO PROTECT NATURAL RESOURCES
- 15. ABSORB HARMFULL UV RAYS FROM THE SUN
- 16. THE INTRACTION OF A COMMUNITY OF ORGANISMS WITH THERE ENVIRONMENT
- 19. UNDER THREAT OF EXTINCTION