Life in the Universe (4th Edition)
4th Edition
ISBN: 9780134089089
Author: Jeffrey O. Bennett, Seth Shostak
Publisher: PEARSON
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Chapter 4, Problem 8RQ
To determine
The age of Earth and method to determine it.
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Chapter 4 Solutions
Life in the Universe (4th Edition)
Ch. 4 - Briefly describe three aspects of geology that are...Ch. 4 - What do we mean by the geological record? Why is...Ch. 4 - Describe the three basic types of rock and the...Ch. 4 - How are sedimentary strata made, and how do they...Ch. 4 - Describe the technique of radiometric dating, and...Ch. 4 - How do fossils form? Do most living organisms...Ch. 4 - Summarize the geological time scale. What are...Ch. 4 - Prob. 8RQCh. 4 - Briefly describe how outgassing led to the origin...Ch. 4 - What was the heavy bombardment, and what effect...
Ch. 4 - Briefly describe Earths core-mantle-crust...Ch. 4 - Briefly describe the conveyorlike action of plate...Ch. 4 - Describe how plate tectonics shapes important...Ch. 4 - What evidence do we have for the operation of...Ch. 4 - What are the three requirements for a planetary...Ch. 4 - Briefly describe the mechanism by which the...Ch. 4 - What has happened to most of the carbon dioxide...Ch. 4 - What are ice ages, and what may cause them? What...Ch. 4 - Briefly summarize the key ways in which geology is...Ch. 4 - How do we think the Moon formed, and what evidence...Ch. 4 - We can expect that if there are paleontologists a...Ch. 4 - Nearly all the rocks I found in the lava fields of...Ch. 4 - Prob. 23TYUCh. 4 - Although Earth contains its densest material in...Ch. 4 - If you had a time machine that dropped you off on...Ch. 4 - If there were no plate tectonics on Earth, our...Ch. 4 - Without the greenhouse effect, there probably...Ch. 4 - If nitrogen were a greenhouse gas, our planet...Ch. 4 - We can learn a lot about Earths early history by...Ch. 4 - Prob. 30TYUCh. 4 - A rocks type (igneous, metamorphic, or...Ch. 4 - To learn a rocks age, we must (a) determine its...Ch. 4 - Radiometric dating now allows us to determine...Ch. 4 - Earths oceans formed (a) during the late stages of...Ch. 4 - We learn about the heavy bombardment by studying...Ch. 4 - Earth has retained a lot of internal heat...Ch. 4 - Plate tectonics is best described as a process...Ch. 4 - Earth has far less atmospheric carbon dioxide than...Ch. 4 - If Earth had more greenhouse gases in its...Ch. 4 - Snowball Earth refers to (a) one of a series of...Ch. 4 - The Age of Earth. Some people still question...Ch. 4 - Dating Planetary Surfaces. We have discussed two...Ch. 4 - Earth Without Differentiation. Suppose Earth had...Ch. 4 - Earth Without Plate Tectonics. Suppose plate...Ch. 4 - Feedback Processes in the Atmosphere. As the Sun...Ch. 4 - Geological Time. Geological time scales are often...Ch. 4 - Dating Lunar Rocks. You are analyzing Moon rocks...Ch. 4 - Carbon-14 Dating. The half-life of carbon-14 is...Ch. 4 - Martian Meteorite. Some unusual meteorites thought...Ch. 4 - Internal vs. External Heating. In daylight, Earths...Ch. 4 - Plate Tectonics. Typical motions of one plate...Ch. 4 - More Plate Tectonics. Consider a seafloor...Ch. 4 - Plate Tectonics and Us. Based on what you learned...
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- How are the inferred properties of Earths original atmosphere related to the location and timescale of Earths formation from the solar nebula?arrow_forwardWhat characteristics must Earths core have to generate a magnetic field?arrow_forwardWhich type of seismic wave cannot pass through Earths core? What does that indicate about the composition of the core?arrow_forward
- Suppose that Earth grew to its present size in 10 million years from particles averaging 100 grams each. On average, how many particles did Earth capture per second? (Notes: 1 yr = 3.2 107 s. Earths mass can be found in Appendix Table A-10.)arrow_forwardWhich of the five Terrestrial worlds have plate tectonics? How do you know?arrow_forwardHow do impacts by comets and asteroids influence Earth’s geology, its atmosphere, and the evolution of life?arrow_forward
- What produced the iron and heavier elements such as gold and silver in Earths core and crust?arrow_forwardH does the increasing abundance of CO2 in Earth’s atmosphere cause a rise in Earth’s temperature’arrow_forwardIf all life were destroyed on Earth by a large impact, would new life eventually form to take its place? Explain how conditions would have to change for life to start again on our planet.arrow_forward
- Which of the five Terrestrial worlds have bow shocks, magneto-spheres, and radiation belts? How do you know?arrow_forwardWhich is the most geologically active Terrestrial world? Why?arrow_forwardWhat is the significance of size of the planet and its atmostphere in supporting life? What two planets have the possibility in supporting life like earth?arrow_forward
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