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CB4 T1 W8 LP1

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  • Something that is dirty and harmful to humans.
    pollution
  • The opposite of dirty.
    clean
  • When humans get sick or something bad happens to them.
    harmful
  • When humans get sick or something bad happens to them.
    harmful
  • The opposite of dirty.
    clean
  • Something that is dirty and harmful to humans.
    pollution
  • Something that humans make to make water less polluted.
    filter
  • Something that humans make to make water less polluted.
    filter
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