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ARC-Easy / Mercury_7230125 / The hypothesis of an expanding universe required which type of validation before…

Problem

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question

The hypothesis of an expanding universe required which type of validation before being accepted as a significant part of scientific theory?

choices

  • a controlled single-variable laboratory test
  • support through evidence from numerous observations
  • proposal of alternative explanations with predictive value
  • a full-scale replication of each event in the proper sequence

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