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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 16, Problem 10SQ
Textbook Problem
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The geologic time scale _____.

  1. a. explains plate tectonics
  2. b. is a type of biological clock
  3. c. correlates intervals of time with layers of sedimentary rock
  4. d. is an example of uniformitarianism

Summary Introduction

Introduction: Geological time scale is the total life span on the Earth from its origin. It is also called as the calendar of the earth, as it explains the relationships and timing of events that have taken place during the Earth's history. It can relate the rock layers with the time interval. The events are mainly classified into eons, eras, periods and epoch. The eras are mainly divided into 4- Cenozoic, Mesozoic, Paleozoic, and Archean.

Explanation of Solution

Reason for the correct answer:

Geological time scale can relate the rock layers with the time interval. It can gain information about the conditions of the environment from the composition of the layers of rocks during the period it was deposited. Also, during this period, there were records of fossils. As there is a change in the composition and the fossil contents, the shift between them implies the occurrence of environmental change, which can impact life forms by affecting them.

Option c is given as, “correlates intervals of time with layers of sedimentary rock”.

Geological time scale explains the relationships and timing of events that have taken place during the Earth's history. It can relate the rock layers with the time interval.

Hence, the correct answer is option c.

Reasons for the incorrect answers:

Option a. is given as, “explains plate tectonics”.

Plate tectonics theory explains about the movement and features of the Earth’s surface plate, whereas the geological time scale explains about the total life span on the Earth from its origin...

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