Environmental Crossword Puzzle

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Across
  1. 3. A large area covered mainly with trees.
  2. 6. Protection and careful management of natural resources.
  3. 7. To convert waste materials into new products.
  4. 8. The physical world, including plants, animals, and landscapes.
  5. 9. Study of how living things interact with their environment.
  6. 10. A community of organisms interacting with each other and their environment.
Down
  1. 1. The planet we live on.
  2. 2. The variety of living organisms in an ecosystem.
  3. 4. Contamination of the environment by harmful substances.
  4. 5. The natural home of a plant or animal.
  5. 10. The power needed to do work or produce heat.