Geologic Time Scale Quiz
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Questions and Answers

What is the main basis for formulating the geologic time scale?

  • Correlating with evolutionary events
  • Assessing the age of rocks and rock sediments (correct)
  • Analyzing the influence of geological and climatic changes on living organisms
  • Recording incidents pertaining to Earth's surface, plant, and animal life
  • What is the age of the Earth according to the text?

  • 4.7 billion years (correct)
  • 5.2 billion years
  • 3.5 billion years
  • 6.0 billion years
  • What is the purpose of dividing the geologic time scale into eons, eras, and periods?

  • To categorize the ancient period
  • To create a four-level hierarchy of time intervals (correct)
  • To neatly record incidents pertaining to Earth's surface, plant, and animal life
  • To correlate with evolutionary events
  • What is the source of the dates used in creating the geologic time scale?

    <p>Radioactive dating</p> Signup and view all the answers

    What is the influence that has been well analyzed in relation to the geologic time scale?

    <p>Geological and climatic changes on the life and the evolution of living organisms</p> Signup and view all the answers

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