Environment

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Across
  1. 3. Tiger is an _________ species that need to be protect
  2. 4. ________ is one of the effort to protect wildlife and natural resources
  3. 6. Forest found in tropical area of heavy rainfall
  4. 8. Variety of plants and animals in an environment
  5. 10. Population of zero also called as ______
Down
  1. 1. The destruction of forest due to human-made
  2. 2. ________ is one of protected green area
  3. 5. A layer that absorb harmful UV radiation from sun
  4. 7. Coal and gas are type of ______
  5. 9. A type of renewable energy