Earth day crossword puzzle

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Across
  1. 3. The planet we live on.
  2. 6. A long way to talk
  3. 7. Warming When the Earth changes temperature.
  4. 8. The environment that animals or creatures live on.
Down
  1. 1. The first people to live in Canada
  2. 2. A better way to work
  3. 4. Using a small amount of things that saves energy
  4. 5. Filling up the ocean with bad cemicals.