Recent+Changes+in+Carbon+Dioxide+Levels+(open)

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E. Exponential decrease
**bold** = correct answer

Question Identifier: GCI_2011_027 Designed for: //Non-Science Majors, General Public// Primary Author(s): none Contributing Author(s): //K. Huang, D. Poulson, J. Libarkin//, D. Sibley Misconception's Reference: //Item modified from item published in the Greenhouse Effect Concept Inventory (Keller, 2006)// Notes: //Stem changed to remove "Which description best represents your understanding of" at beginning of question1322846268//

include component="comments" page="1)   Which of the following are necessary for a volcano to form? " limit="10"