BIO150Y1_07YEAR4_68 - Prof Jefferies 1 In an Interglacial...

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Prof. Jefferies 1. In an Interglacial, new ice that develops on the remnants of the northern ice caps may be expected to have which one of the following isotopic signatures of oxygen? a. The same 18 O/ 16 O ratio as that of water vapour originating from equatorial ocean water in a Glacial Period. b. A decrease in the ratio of 18 O/ 16 O relative to that in ice formed in a Glacial Period. c. An increase in the ratio of 18 O/ 16 O relative to that in ice formed in a Glacial Period. d. A higher 18 O/ 16 O ratio than that in the outer shell of Foramifera that lived in equatorial ocean waters in a Glacial Period. e. A higher 18 O/ 16 O ratio than that of water vapour originating from equatorial ocean water in a Glacial Period. 2 . Which statement is CORRECT ? 3. The regions of the Gulf of Bothnia (northern Baltic Sea) and the Hudson Bay provide evidence of which landscape feature? 4. Which statement about the Younger Dryas Period is CORRECT ? utoronto.studentbuddy.com
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