Mr Chapter 15 Earth History Test

38 Questions | Total Attempts: 976

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Mr Chapter 15 Earth History Test

Questions and Answers
  • 1. 
    Geologists use the geologic column and the law of superposition to help them do:
    • A. 

      Radioactive decay

    • B. 

      Radiometric dating

    • C. 

      Absolute dating

    • D. 

      Relative dating

  • 2. 
    Modern geologists believe that Earth's features are shaped by both uniformitarianism as well as catastrophism.
    • A. 

      True

    • B. 

      False

  • 3. 
    Based on the law of superposition, in an undisturbed rock bed, where should the youngest rock layers be found?
    • A. 

      The top

    • B. 

      The bottom

    • C. 

      In the middle

    • D. 

      Half way between the top and the middle

  • 4. 
    The theory of geology that states that changes in Earth's appearance happen at a slow and gradual pace that has been the same all throughout Earth's history is known as:
    • A. 

      Catastrophism

    • B. 

      Uniformitarianism

    • C. 

      Geologic column

    • D. 

      Radiometric dating

  • 5. 
    The theory of geology that states that changes in Earth's appearance are rare and rapid is known as:
    • A. 

      Catastrophism

    • B. 

      Uniformitarianism

    • C. 

      Geologic column

    • D. 

      Radiometric dating

  • 6. 
    When rock layers are laid down and then moltent rock pushes its way up through the layers, what type of disturbance is this?
    • A. 

      Overturned

    • B. 

      Tilting

    • C. 

      Folding

    • D. 

      Intrusion

  • 7. 
    In an overturned bed, the oldest rock layers should be found on the bottom of the geologic column.
    • A. 

      True

    • B. 

      False

  • 8. 
    If fossils of a land-dwelling organism are found on two seperate continents, what is most likely the cause?
    • A. 

      There was a land bridge

    • B. 

      The continents were once connected in Pangea

    • C. 

      The animal swam

    • D. 

      The exact same animal lived on seperate continents at the same time

  • 9. 
    Seeds of a tropical plant are found in the arctic.  What is most likely the explanation for this?
    • A. 

      Migratory birds took them there when they flew north for the winter

    • B. 

      The arctic once had a tropical climate

    • C. 

      The seeds were left by an explorer

    • D. 

      The seeds floated to the arctic in the ocean

  • 10. 
    __________________________ is known as a gap in geologic time, or a missing rock layer.
    • A. 

      Erosion

    • B. 

      Deposition

    • C. 

      Unconformity

    • D. 

      Isotope

  • 11. 
    What can scientists determine about studying unconformities?
    • A. 

      Types of rocks that were preserved in the rocks

    • B. 

      Erosion moved some of the rock

    • C. 

      Details about the rock record

    • D. 

      Different kinds of rocks that are present in the column

  • 12. 
    A scientist finds the same type of fossil in layers of rock in both Europe and South America. What does this indicate about the ages of the rocks?
    • A. 

      They would be the same age.

    • B. 

      The European rock would be older.

    • C. 

      The South American rock would be older.

    • D. 

      Fossils tell nothing about rock ages.

  • 13. 
    A fossil of an ancient fish was dug up along with fossilized leaves of fern-like plants. In which environment was this fossil probably formed?
    • A. 

      Hot jungle

    • B. 

      Arctic sea

    • C. 

      Hot desert

    • D. 

      Warm swamp

  • 14. 
    Which conclusion can be made if the fossil of a paleozoic organism were found in the mountains of Australia as well as in the desert of North America?
    • A. 

      The fossil was carried by glaciers.

    • B. 

      The fossil was moved by the oceans.

    • C. 

      The organism was capable of living in both areas.

    • D. 

      The rock layers where the fossil was found were made of metamorphic rock.

  • 15. 
    Trilobites lived from 200-500 million years ago.  If a paleontologists finds a fossil of a trilobite in a layer of sandstone, what does that tell the paleontologist about the age of the sandstone?
    • A. 

      The fossil is older than the sandstone.

    • B. 

      The fossil is younger than the sandstone.

    • C. 

      The sandstone is between 200-500 million years old.

    • D. 

      The sandstone is less than 200 million years old.

  • 16. 
    The type of dating used when an age or a year of an event is given.
    • A. 

      Radiometric dating

    • B. 

      Absolute dating

    • C. 

      Relative dating

    • D. 

      Radiometric decay

  • 17. 
    What epoch did humans come about in?
    • A. 

      Phanerozoic

    • B. 

      Holocene

    • C. 

      Cenozoic

    • D. 

      Quaternary

  • 18. 
    "3 million years old" is an example of relative dating.
    • A. 

      True

    • B. 

      False

  • 19. 
    When doing absolute dating, geologists test for a certain amount of an _____________________, which is an element that has the same number of protons, but a different number of neutrons.
    • A. 

      Half life

    • B. 

      Carbon 12

    • C. 

      Isotope

    • D. 

      Eon

  • 20. 
    An organism whose species lived for a short, well-defined amount of time, and we know what this time period is would be classified as a(n) ___________________.
    • A. 

      Trace fossil

    • B. 

      Amber

    • C. 

      Index fossil

    • D. 

      Ice core

  • 21. 
    Which of the following are types of radiometric dating methods?
    • A. 

      Carbon 14

    • B. 

      Rubidium-Strotonium

    • C. 

      Carbon 12

    • D. 

      Potassium-Argon

    • E. 

      Uranium-Lead

    • F. 

      Silcon-Mercury

  • 22. 
    ____________ is the time it takes for half of an unstable isotope to decompose.
    • A. 

      Isotope

    • B. 

      Half life

    • C. 

      Eon

    • D. 

      Absolute dating

  • 23. 
    Which of the following are ways for fossils to form?
    • A. 

      Amber

    • B. 

      Fossils in ice cores

    • C. 

      Fossils in asphault

    • D. 

      Fossils in rock layers

    • E. 

      Petrification

  • 24. 
    It was during this era that the largest mass exctinction in all of Earth's history happened:
    • A. 

      Archaean

    • B. 

      Cenozoic

    • C. 

      Mesozoic

    • D. 

      Paleozoic

  • 25. 
    The Phanerozoic Eon is divided into three eras.  Which of the following is NOT one?
    • A. 

      Paleozoic

    • B. 

      Proterizoic

    • C. 

      Cenozoic

    • D. 

      Mesozoic

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