Eras Of Earth's History

6 Questions

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History Quizzes & Trivia

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Questions and Answers
  • 1. 
    A _______________ is where a large number of species die off at the same time.
    • A. 

      Half-life

    • B. 

      Isotopic analysis

    • C. 

      Uniformitarianism

    • D. 

      Mass extinction

  • 2. 
    At the beginning of the Paleozoic Era was the _______________ explosion, in which a large variety of organisms developed and evolved.
    • A. 

      Ordovician

    • B. 

      Silurian

    • C. 

      Cambrian

    • D. 

      Cretaceous

  • 3. 
    During the ______________ Period, there were huge insects, due in part to the large amount of oxygen in the atmosphere.
    • A. 

      Silurian

    • B. 

      Carboniferous

    • C. 

      Triassic

    • D. 

      Tertiary

  • 4. 
    • A. 

      Paleozoic, Mesozoic, Cenozoic

    • B. 

      Cenozoic, Paleozoic, Mesozoic

    • C. 

      Paleozoic, Cenozoic, Mesozoic

    • D. 

      Cenozoic, Mesozoic, Paleozoic

  • 5. 
    The _______________ Era is referred to as the "Age of Reptiles," because _______________ were the dominant life form.
    • A. 

      Paleozoic; mammals

    • B. 

      Mesozoic; dinosaurs

    • C. 

      Precambrian; jellyfish

    • D. 

      Cenozoic; bacteria

  • 6. 
    The ________________ Era is referred to as the "Age of Mammals," since mammals like humans, are the dominant life form.
    • A. 

      Mesozoic

    • B. 

      Paleozoic

    • C. 

      Cenozoic

    • D. 

      Precambrian