Midterm review Earth Science Exam Practice Questions and Answers

Midterm review Earth Science Exam Practice Questions and Answers Which of the following changes would end Earth's tectonic activity? A Earth's crust becomes a cooler solid. B Earth's mantle becomes a warmer semiliquid. C Earth's mantle becomes cooler and solid. D Earth's outer core becomes warmer. - Correct Answer️️ -C Earth's mantle becomes cooler and solid. Which of the following best explains why Earth is tectonically active? A Earth's solid surface layer rotates more rapidly than the layers beneath it. B Areas of Earth's solid surface layer are under great pressure from ocean water. C Earth's solid surface layer sits on a moving, semiliquid layer. D Areas of Earth's solid surface layer are thicker and so heavier than other areas. - Correct Answer️️ -C Earth's solid surface layer sits on a moving, semiliquid layer. Oceanic crust is composed mainly of basalt. Continental crust is composed mainly of granite. Why does oceanic crust generally tend to subduct under continental crust when plates collide? A The oceanic crust is thicker than the continental crust. B The continental crust is thicker than oceanic crust. C The oceanic crust is denser than the continental crust. D The continental crust is denser than the oceanic crust. - Correct Answer️️ -C The oceanic crust is denser than the continental crust. What are the properties of the Earth's crust and mantle that are most responsible for Earth's tectonic activity? A They are in different states and have different temperatures. B They are in the same state but have different temperatures. C They are in different states but have the same temperature. D They are the same state and have the same temperature. - Correct Answer️️ -A They are in different states and have different temperatures. Which analogy best illustrates why Earth's plates move? A A glass shatters as it falls from a table onto a tile floor. B The ice on a frozen pond cracks when the water beneath it moves. C Burning diesel fuel forces a piston downward, turning the crankshaft. D A tree root grows into a ledge and breaks off a piece of rock. - Correct Answer️️ -B The ice on a frozen pond cracks when the water beneath it moves. Which transition is most responsible for gaps in the fossil record? A metamorphic rock to igneous rock B igneous rock to metamorphic rock C metamorphic rock to sedimentary rock D sedimentary rock to metamorphic rock - Correct Answer️️ -D sedimentary rock to metamorphic rock After fossils are formed, which process is most likely to destroy t