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400 360 320 -cO2 -Temperature 280 240 200 -12 160 800000 600000 400000 200000 Temperature change from present ("C) (wdd) 0ɔ

400 360 320 -cO2 -Temperature 280 240 200 -12 160 800000 600000 400000 200000 Temperature change from present ("C) (wdd) 0ɔ

Applications and Investigations in Earth Science (9th Edition)
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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**Figure 3-1 The Dome C Ice Core** **Graph Description:** The graph in Figure 3-1 displays two key environmental variables over the past 800,000 years, based on ice core data from Dome C in Antarctica. The horizontal axis represents time, labeled as "Age (years before present)," ranging from 800,000 years ago to the present. The graph presents two vertical axes: 1. The left vertical axis shows "Temperature change from present (°C)" and ranges from -12°C to 0°C. 2. The right vertical axis represents "CO₂ (ppm)" and ranges from 160 ppm to 440 ppm. Two lines are plotted on the graph: - A blue line represents changes in CO₂ levels over time. - A darker blue line indicates temperature changes over the same period. The graph suggests that there is a cyclical pattern in both temperature and CO₂ levels, with periods of rising and falling values throughout the 800,000-year timeline. **Q20** Identify, in words, the quantities graphed in Figure 3-1. **Answer:** The graph represents the historical data of temperature changes and atmospheric carbon dioxide (CO₂) levels over the past 800,000 years. The quantities shown are the temperature change from the present (in degrees Celsius) and the concentration of CO₂ in parts per million (ppm). **Q21** Explain the graphical relationship between the atmosphere’s CO₂ levels and temperature over the past 800,000 years. **Answer:** The graph illustrates a close correlation between atmospheric CO₂ levels and temperature changes over the past 800,000 years. Periods of increased CO₂ levels often align with higher temperatures, indicating a potential linkage where both variables influence each other. The cyclical nature of the graph suggests alternating periods of warming and cooling, with CO₂ and temperature rising and falling in tandem. This relationship highlights the interdependence observed in historical climate patterns.
Transcribed Image Text:**Figure 3-1 The Dome C Ice Core** **Graph Description:** The graph in Figure 3-1 displays two key environmental variables over the past 800,000 years, based on ice core data from Dome C in Antarctica. The horizontal axis represents time, labeled as "Age (years before present)," ranging from 800,000 years ago to the present. The graph presents two vertical axes: 1. The left vertical axis shows "Temperature change from present (°C)" and ranges from -12°C to 0°C. 2. The right vertical axis represents "CO₂ (ppm)" and ranges from 160 ppm to 440 ppm. Two lines are plotted on the graph: - A blue line represents changes in CO₂ levels over time. - A darker blue line indicates temperature changes over the same period. The graph suggests that there is a cyclical pattern in both temperature and CO₂ levels, with periods of rising and falling values throughout the 800,000-year timeline. **Q20** Identify, in words, the quantities graphed in Figure 3-1. **Answer:** The graph represents the historical data of temperature changes and atmospheric carbon dioxide (CO₂) levels over the past 800,000 years. The quantities shown are the temperature change from the present (in degrees Celsius) and the concentration of CO₂ in parts per million (ppm). **Q21** Explain the graphical relationship between the atmosphere’s CO₂ levels and temperature over the past 800,000 years. **Answer:** The graph illustrates a close correlation between atmospheric CO₂ levels and temperature changes over the past 800,000 years. Periods of increased CO₂ levels often align with higher temperatures, indicating a potential linkage where both variables influence each other. The cyclical nature of the graph suggests alternating periods of warming and cooling, with CO₂ and temperature rising and falling in tandem. This relationship highlights the interdependence observed in historical climate patterns.
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