Answer Key b nebular hypothesis Multiple Choice b core, mantel, crust b d True/False a c Fill Ins d F d platforms T b felsic T b Komatiites T c Kenoran Orogeny T c red shift F a granulite association F b greenstone association F c granulite association F a greenstone belt F d autotroph c cyanobacteria a eukaryote c stromatolite RESPONSES TO QUESTIONS ACCOMPANYING SELECTED FIGURES FIGURE 8–3 (p. 217) From the Milky Way galaxy would resemble a discoidal spiral consisting of stars, planets, satellites, meteors, comets, gases, and dust. FIGURE 8–11 (p. 223) The back side of the Moon is older and therefore more heavily cratered. The nearside of the Moon has many younger rocks, in particular the dark basalts flow areas. FIGURE 8–12 (p. 224) Escaping gases were responsible for the spherical holes in the lunar basalt. This indicates a relative, rapid cooling of this rock. FIGURE 8–26 (p. 234) Both shield and platform are components of the craton. Platforms are regions of the craton in which igneous and metamorphic basement rocks are covered by a blanket of sedimentary rocks.
Answer Key Multiple Choice d a c d d b b c c a b c a d c a c b b b Fill Ins platforms felsic Komatiites Kenoran Orogeny red shift granulite association greenstone association granulite association greenstone belt autotroph cyanobacteria eukaryote stromatolite nebular hypothesis core, mantel, crust True/False F T T T T F F F F F RESPONSES TO QUESTIONS ACCOMPANYING SELECTED FIGURES FIGURE 8–3 (p. 217) From the Milky Way galaxy would resemble a discoidal spiral consisting of stars, planets, satellites, meteors, comets, gases, and dust. FIGURE 8–11 (p. 223) The back side of the Moon is older and therefore more heavily cratered. The nearside of the Moon has many younger rocks, in particular the dark basalts flow areas. FIGURE 8–12 (p. 224) Escaping gases were responsible for the spherical holes in the lunar basalt. This indicates a relative, rapid cooling of this rock. FIGURE 8–26 (p. 234) Both shield and platform are components of the craton. Platforms are regions of the craton in which igneous and metamorphic basement rocks are covered by a blanket of sedimentary rocks.