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Unformatted text preview: Grodin, Micah – Homework 7 – Due: Oct 25 2005, 11:00 pm – Inst: Sara Sutcliffe 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. If you are unsure as to the exact answer of any question you may want to wait until Thursday’s lecture before submitting it. 001 (part 1 of 1) 10 points What evidence established the conclusion that global temperatures and atmospheric CO 2 concentrations have been correlated for more than 150,000 years? 1. Ice core data provide the CO 2 concen- trations that correlate with temperatures in- ferred from tree ring data. Atomospheric 14 CO 2 concentrations have decreased. 2. CO 2 concentrations found in bubbles in ice cores correlate with deuterium ( 2 H) to hydrogen ( 1 H) ratios that provide the tem- perature record. correct 3. Tree ring data provide temperature records that are correlated with CO 2 con- centrations derived from oil well bore hole samples. 4. The composition of sediment in oil well bore holes reveals a deuterium ( 2 H) to hy- drogen ( 1 H) ratio that provides a tempera- ture record that correlates with atmospheric 14 CO 2 concentrations that have decreased over time. 5. Atomspheric 14 CO 2 concentrations have decreased over time. Explanation: 002 (part 1 of 1) 10 points Without the presence of an atmosphere that contains greenhouse gases the temperature of planets would be 1. There is no correlation; the temperature depends upon many other factors, such as the distance from the sun and the planet’s orbital velocity....
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- Fall '05