Physical Science (12th Edition), Standalone Book
12th Edition
ISBN: 9781260150544
Author: Bill W. Tillery
Publisher: McGraw Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 21, Problem 20AC
To determine
The earliest fossils that represented life from thefollowing options:
land.
oceans.
air.
All of the above are correct.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
réptilés
d. all) of these
7. The development of ozóne in the stratosphere and oxygen in the atmosphere first
made possible the development of
a. complex organisms
b. single-cell organisms
c. cyanobacteria
d. all of these
8. Today, many scientists think that
a. 'birds evolved from dinosaurs
b. dinosaurs evolved from reptiles
c. birds evolved from amphibians
d. both a andb
9. Ediacaran organisms first appeared during the
a. Precambrian Time
b. Cambrian Period
c. Permian Period
d. none of these
10. As
a. cyanobacteria
b. trilobites
evolved, they changed Earth's atmosphere by producing oxygen.
c. reptiles
d. dinosaurs
Geologic Time
What describes using organisms that were only alive during a specific time period to estimate the unknown age of items?
a.
Radioactive dating
Selected:b.
Law of superposition
This answer is incorrect.
c.
Relative dating
d.
Index fossils
3. The Duggs find the skeleton of a Zillow beast and wish to carbon date it. If the half life of Carbon-14
is 5700 years, and we measure 60% of the original carbon, how old is the Zillow beast fossil?
Chapter 21 Solutions
Physical Science (12th Edition), Standalone Book
Ch. 21 -
1. Evidence of former life is called...Ch. 21 -
2. In the early 1800s, William Smith noted that...Ch. 21 - Prob. 3ACCh. 21 -
4. The meaning of the word fossil is
a. petrified...Ch. 21 - Prob. 5ACCh. 21 - Prob. 6ACCh. 21 -
7. Fossils are most often found in what type...Ch. 21 - Prob. 8ACCh. 21 - Prob. 9ACCh. 21 - Prob. 10AC
Ch. 21 -
11. Distinctive fossils of plants or animals that...Ch. 21 - Prob. 12ACCh. 21 - Prob. 13ACCh. 21 - Prob. 14ACCh. 21 - Prob. 15ACCh. 21 - Prob. 16ACCh. 21 - Prob. 17ACCh. 21 - Prob. 18ACCh. 21 - Prob. 19ACCh. 21 - Prob. 20ACCh. 21 - Prob. 21ACCh. 21 - Prob. 22ACCh. 21 - Prob. 23ACCh. 21 - Prob. 24ACCh. 21 - Prob. 25ACCh. 21 -
26. Which of the basic guiding principles used to...Ch. 21 - Prob. 27ACCh. 21 - Prob. 28ACCh. 21 -
29. Correlation and relative dating of rock units...Ch. 21 - Prob. 30ACCh. 21 -
31. You would expect to find the least number of...Ch. 21 - Prob. 32ACCh. 21 - Prob. 33ACCh. 21 - Prob. 34ACCh. 21 -
35. An early record about the discovery of...Ch. 21 - Prob. 36ACCh. 21 - Prob. 37ACCh. 21 -
38. A geologic feature that cuts across or is...Ch. 21 - Prob. 39ACCh. 21 - Prob. 40ACCh. 21 - Prob. 41ACCh. 21 - Prob. 42ACCh. 21 - Prob. 43ACCh. 21 - Prob. 44ACCh. 21 - Prob. 45ACCh. 21 - Prob. 46ACCh. 21 -
1. What is the principle of uniformity? What are...Ch. 21 -
2. What is the geologic time scale? What is the...Ch. 21 -
3. Why does the rock record go back only 3.8...Ch. 21 -
4. Do igneous, metamorphic, or sedimentary rocks...Ch. 21 -
5. What major event marked the end of the...Ch. 21 -
6. Briefly describe the principles and...Ch. 21 - Prob. 7QFTCh. 21 -
8. Describe how the principles of superposition,...Ch. 21 - Prob. 9QFTCh. 21 - Prob. 10QFTCh. 21 -
11. Describe some of the things that fossils can...Ch. 21 -
1. Analyze the significant reasons that a pot...Ch. 21 - Prob. 2FFACh. 21 -
4. What are the significant differences between...Ch. 21 -
5. Summarize why the different blocks of time...Ch. 21 - Prob. 5FFACh. 21 -
6. The history of Earth has been one of many...Ch. 21 - Prob. 1PEACh. 21 - Prob. 2PEACh. 21 - Prob. 3PEACh. 21 - Prob. 4PEACh. 21 - Prob. 5PEACh. 21 - Prob. 6PEACh. 21 - Prob. 7PEACh. 21 - Prob. 8PEACh. 21 - Prob. 9PEACh. 21 - Prob. 10PEACh. 21 - Prob. 11PEACh. 21 - Prob. 12PEACh. 21 - Prob. 13PEACh. 21 - Prob. 14PEACh. 21 - Prob. 15PEACh. 21 -
1. A sequence of deep marine shale that spans the...Ch. 21 - Prob. 2PEBCh. 21 - Prob. 3PEBCh. 21 -
4. The absolute age of a rock is its age in...Ch. 21 -
5. The absolute age (age in years) of sedimentary...Ch. 21 -
6. A sequence of rocks consists of a flat-lying...Ch. 21 -
7. A student examining a roadcut excavated...Ch. 21 - 8. A cliff has the following sequence...Ch. 21 - Prob. 9PEBCh. 21 - Prob. 10PEBCh. 21 - Prob. 11PEBCh. 21 - Prob. 12PEBCh. 21 - Prob. 13PEBCh. 21 - Prob. 14PEBCh. 21 -
15. Two outcrops separated by a distance of 32 km...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Why do scientists generality think that liquid water is necessary for the origin of life?arrow_forward5. The diplodocus dinosaur is believed to have become extinct approximately 1.38x10° years ago. The oviraptor is believed to have become extinct approximately 7x10' years ago. How many years were there between the extinction of these two dinosaur types?arrow_forward1. What is relative dating? 2. What is the law of superposition? 3. What is the law of original horizontally?arrow_forward
- Radiocarbon dating technique is used to estimate the age of: A. rocks B. monuments C. soil D. fossilsarrow_forward1.) Gases in the atmosphere keep the temperature in a range to support life on earth. 2.) There is an exact place where the atmosphere ends.arrow_forward34.How old is this Martian Rock that is found to be containing 12.5% of a radioactive parent nucleus? The half-life of this isotope is 1 billion years old. a. 5 billion years b. 12 billion years c. 3 billion years d. 10 billion yearsarrow_forward
- Earth's surface area is 5.10x10^8 km^2 .Earth's crust has a thickness (or depth) of 35 km and density 2.8 g/cm^3 for earth's crust. d) Silicon's concentration in earth's crust is 2.72x105grams/ton. Calculate the mass of silicon (in grams) present in earth's crust.arrow_forwardApproximately how old is a fossil that contains 1.5g of C14 and 198.5g of C12? Remember that C14 decays to C12 with a half life of 6,000 years.arrow_forwardEarth's surface area is 5.10x10^8 km^2 .Earth's crust has a thickness (or depth) of 35 km and density 2.8 g/cm^3 for earth's crust. a) Calculate the volume of earth's crust in km^3 b) Express your answer from part (a) in cm^3 c) Calculate the mass of the crust tons (t) : 1 ton=1000kg d) Silicon's concentration in earth's crust is 2.72x105grams/ton. Calculate the mass of silicon (in grams) present in earth's crust.arrow_forward
- A fossilized leaf contains 70% Of its normal amount of carbon- 14. How old is the fossil? Use 5730 yesrs as the half-life of carbon- 14.arrow_forward16) Peter Singer claims that we should accept speciesism only as long as it involves the defense of human rights. a. True b. False 17) Which of the following would be an example of a "big" or "timeless" question? a. Do humans have free will? b. Is there a God? c. Do humans have souls? d. All of these e. None of these 18) Philosophy is best defined as the love of a. numbers b. donuts c. wisdom d. music e. None of these 19) Conceptual analysis is a task/function of philosophy. a. True b. False 20) Philosophers tend to reject big picture perspectives. a. True b. Falsearrow_forward44.What term is associated with Donald T.Campbell's concept of evolutionary epistemology? A.Environmental determinism. B.Knowledge acquisition. C.Selection pressures. D.Social cognition.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage LearningHorizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305079137/9781305079137_smallCoverImage.gif)
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305960961/9781305960961_smallCoverImage.gif)
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337399920/9781337399920_smallCoverImage.gif)
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
A Level Physics – Ideal Gas Equation; Author: Atomi;https://www.youtube.com/watch?v=k0EFrmah7h0;License: Standard YouTube License, CC-BY