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Home  arrow Chapter 12  arrow Concept 1 Quiz

Concept 1 Quiz

Understand the complex history of the geologic past by using the Geologic Time Scale. List significant geologic, biologic, and special events for each Era, including the largest span of geologic time during the Precambrian.

This activity contains 11 questions.

Question 1.
Large "core areas" of Precambrian rocks, called ____________, exist on each continent.


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Question 2.
Substantial quantities of oxygen accumulated in Earth's oceans and atmosphere after the available metallic ____________ was oxidized.


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Question 3.
Geologists infer and hypothesize that Earth's original atmosphere included many gases. Which of the following gases was not included?


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Question 4.
Which one of the following is most notably absent in Precambrian rocks?


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Question 5.
The first life-forms on Earth, probably bacteria, did not need oxygen.


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Question 6.
The first three eons of Earth's history are collectively known as the Precambrian.


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Question 7.
Considering the Precambrian represents a large expanse of time, little is known about these rocks because


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Question 8.
Precambrian fossils found as distinctly layered mounds or columns of calcium carbonate are known as


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Question 9.
Which of the following contributed to oceans on the surface of Earth?


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Question 10.
We know very little about Precambrian rocks because they were all destroyed through mining activities.


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Question 11.
Complete this chart by choosing the best answer to mark the times of appearance and abundance of major groups of organisms.

(Picture from Earth Science, 11th edition Prentice-Hall, Inc.)




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The letters A through C appear on an image associated with this question.

This question presents 3 items numbered 11.1 through 11.3. Each item is presented with a pulldown menu containing the letters A through C. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
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