1. Examine p. 374 . List half a dozen of the unique features of Earth that make life possible, and then, next to each item in the list, explain each one separately in about a half-sentence — be careful to explain very briefly how the item makes life possible. Mere listing of something is not sufficient; you must explain why that “something” enables or protects life on Earth. Sometimes these and other features of this type are collected under the label “ Anthropic Principle ” (Greek anthropos , referring to “man”), which is taken by many Christians as scientific evidence that God specifically arranged for Earth to be inhabited by humans (see the DVD titled “The Privileged Planet”). The PowerPoint for Chapter 12 contains information about the Anthropic Principle, and lists some internet resources where more information about it can be found. 12 points. 2. In two or three sentences, present the speculative view of Earth formation — how planet Earth was formed (pp. 377). 7 points.
3. Define outgassing (p. 379) and briefly describe its significance for Earth history . How did the present atmosphere rich in oxygen originate? 7 points. 4. Define geologic shields (p. 22) and briefly describe their general locations (Fig. 1.21, p. 24). Also , explain why , in some places, shields are not found.7 points.
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- Spring '14