Newsela (Coca-cola, Pepsi and Nestle)

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Across
  1. 4. the introduction of harmful materials into the environment
  2. 7. the natural world
  3. 8. putting harmful substances in the environment
Down
  1. 1. burned completely
  2. 2. a person who works or helps without pay
  3. 3. a person or company that makes something
  4. 5. burying rubbish in the land/earth
  5. 6. used again or more than once