Wipro_3799151_SyedRawoof_

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Across
  1. 4. Layer protecting Earth from UV rays?
  2. 6. Gas plants take in from air?
  3. 8. Average weather condition of a place?
  4. 9. Living organisms and environment together?
  5. 11. Essential natural resource for life?
  6. 13. Variety of life on Earth?
  7. 15. Minimizing waste generation?
  8. 16. Protection of natural resources?
  9. 17. Contamination of environment?
  10. 18. Natural flowing water body?
Down
  1. 1. Top layer of earth for plants?
  2. 2. Using items again?
  3. 3. Mixture of gases we breathe?
  4. 5. Large area covered with trees?
  5. 7. Cutting down trees?
  6. 10. Gas humans need to breathe?
  7. 12. Process of reusing waste?
  8. 14. Large saltwater body?