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Vocabulary 4

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  • To measure the ____ of the ocean, scientists use technology.
    depth
  • Spies used a secret ____.
    code
  • Cleaning the river was a huge _____, yet we accomplished it.
    challenge
  • The information on the research must be ____ and updated.
    accurate
  • The survey collects ___ about the community.
    data
  • My grandma has a ___ about weather.
    theory
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