9th Edition

ISBN: 9781259638145

Author: Fahlman, Bradley D., Purvis-roberts, Kathleen, Kirk, John S., Bentley, Anne K., Daubenmire, Patrick L., ELLIS, Jamie P., Mury, Michael T., American Chemical Society

Publisher: Mcgraw-hill Education,

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Textbook Question

Chapter 4, Problem 7Q

Consider Figure 4.23.

a. How does the present concentration of CO₂ in the atmosphere compare with its concentration 20,000 years ago? With its concentration 120,000 years ago?
b. How does the present temperature of the atmosphere compare with the 1950–1980 mean temperature? With the temperature 20,000 years ago? How does each of these values compare with the average temperature 120,000 years ago?
c. Do your answers to parts a and b indicate causation, correlation, or no relation? Explain.

Chapter 4, Problem 7Q, Consider Figure 4.23. a. How does the present concentration of CO2 in the atmosphere compare with

Figure 4.23

Carbon dioxide concentration (blue) and global temperatures (red) over the last 400,000 years from ice core data.

Source: Environmental Defense Fund

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Chapter 4, Problem 6Q

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Solution Summary: The author compares the present concentration of carbon dioxide in the atmosphere with its concentration 20,000 and 120,000 years ago.

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