Geo 401 Final Exam 2023 with 100% correct answers

The Earth's mantle is almost entirely A. solid B. liquid C. gas D. plasma - correct answer -A. solid What is the elemental composition of the Earth's inner core? A. Fe, Ni B. O, S, Mg, Fe C. Fe, Ni, S, K D. Ni, S, O, Al - correct answer -A. Fe, Ni Which of the following best characterizes the change that occurs at the boundary between the lithosphere and asthenosphere? A. The asthenosphere has a higher magnesium content B. The asthenosphere flows more easily C. The asthenosphere is liquid and the lithosphere is solid D. all of the above - correct answer -B. The asthenosphere flows more easily Which force drives plate tectonics? A. nuclear B. electromagnetic C. gravity - correct answer -C. gravity Chemical reactions involve the sharing or exchange of A. Neutrons B. Protons C. Minerals D. Electrons - correct answer -D. Electrons You discover limestone containing fossils at the top of Mt. Everest. Using the principle of uniformitarianism, you conclude that the rocks on top of Mt. Everest in the past were A. in a shallow ocean basin B. located on the deep ocean floor C. located on the margins of a granite batholith D. in a delta - correct answer -A. in a shallow ocean basin