How can we know what carbon dioxide levels were in the more distant past? Choose the right answer A.) We dig up fossils and fossil fuels and determine their composition which tells us about past climates B.) We make assumptions based on current levels of CO2 C.) Atmospheric gases are stored between ice crystals when they form. Scientists can use ice cores to study what gasses were in the atmosphere in the past. D.) We use historical reports from scientists from long ago and compare them to modern day records.
How can we know what carbon dioxide levels were in the more distant past? Choose the right answer A.) We dig up fossils and fossil fuels and determine their composition which tells us about past climates B.) We make assumptions based on current levels of CO2 C.) Atmospheric gases are stored between ice crystals when they form. Scientists can use ice cores to study what gasses were in the atmosphere in the past. D.) We use historical reports from scientists from long ago and compare them to modern day records.
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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How can we know what carbon dioxide levels were in the more distant past? Choose the right answer
A.) We dig up fossils and fossil fuels and determine their composition which tells us about past climates
B.) We make assumptions based on current levels of CO2
C.) Atmospheric gases are stored between ice crystals when they form. Scientists can use ice cores to study what gasses were in the atmosphere in the past.
D.) We use historical reports from scientists from long ago and compare them to modern day records.
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