Earth day crossword

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Across
  1. 2. Things that help us stay alive
  2. 4. The warming of earth
  3. 9. A varibiliy on life on Earth
  4. 10. The place we live on
Down
  1. 1. To use a device for learning and other purpouses and to do with computer technology
  2. 3. The protection of natural resources
  3. 5. Make something into a reusable thing
  4. 6. To cut down trees and break animals habitat
  5. 7. A place where animals live
  6. 8. To contaminite living things with harmful things like trash and dirt