A portion of a popular college text in historical geology includes 10 chapters (281 pages) in a unit titled “The Story of Earth.” Two chapters (49 pages) are devoted to Precambrian time. By contrast, the last two chapters (67 pages) focus on the most recent 23 million years, with 25 of those pages devoted to the Holocene Epoch, which began 10,000 years ago. a. Compare the percentage of pages devoted to the Precambrian to the percentage of geologic time that this span represents. b. How does the number of pages about the Holocene compare to its percentage of geologic time? c. Suggest some reasons the text seems to have such an unequal treatment of Earth history
A portion of a popular college text in historical geology includes 10 chapters (281 pages) in a unit titled “The Story of Earth.” Two chapters (49 pages) are devoted to Precambrian time. By contrast, the last two chapters (67 pages) focus on the most recent 23 million years, with 25 of those pages devoted to the Holocene Epoch, which began 10,000 years ago. a. Compare the percentage of pages devoted to the Precambrian to the percentage of geologic time that this span represents. b. How does the number of pages about the Holocene compare to its percentage of geologic time? c. Suggest some reasons the text seems to have such an unequal treatment of Earth history
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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| A portion of a popular college text in historical geology includes 10 chapters (281 pages) in a unit titled “The Story of Earth.” Two chapters (49 pages) are devoted to Precambrian time. By contrast, the last two chapters (67 pages) focus on the most recent 23 million years, with 25 of those pages devoted to the Holocene Epoch, which began 10,000 years ago. a. Compare the percentage of pages devoted to the Precambrian to the percentage of geologic time that this span represents. b. How does the number of pages about the Holocene compare to its percentage of geologic time? c. Suggest some reasons the text seems to have such an unequal treatment of Earth history |
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