Praxis General Science CK (5435) Domain 4: Earth and Space Science Welcome to your Praxis General Science CK (5435) Domain 4: Earth and Space Science 1. Praxis General Science: Earth and Space Science What phenomenon causes the Earth's lithosphere to move? A. Magnetic field variations B. Solar radiation C. Plate tectonics D. Atmospheric pressure changes None 2. Praxis General Science: Earth and Space Science The K-T boundary is significant in Earth's geological history because it provides evidence for: A. The separation of Pangaea B. The end of the Ice Age C. The extinction of dinosaurs D. The beginning of human civilization None 3. Praxis General Science: Earth and Space Science Which type of cloud is most commonly associated with thunderstorms? A. Cirrus B. Cumulus C. Stratus D. Cumulonimbus None 4. Praxis General Science: Earth and Space Science What is the primary cause of tides on Earth? A. Earth's rotation B. Gravitational pull of the Sun and the Moon C. Atmospheric pressure changes D. Continental drift None 5. Praxis General Science: Earth and Space Science The most abundant gas in Earth's atmosphere is: A. Oxygen B. Nitrogen C. Carbon Dioxide D. Argon None 6. Praxis General Science: Earth and Space Science Which layer of Earth's atmosphere contains the ozone layer? A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere None 7. Praxis General Science: Earth and Space Science In the context of geological time scales, what is an eon? A. A subdivision of an era B. The largest time unit C. A span of 100,000 years D. The time period since Earth's formation None 8. Praxis General Science: Earth and Space Science What is the primary process by which stars generate energy? A. Fission B. Fusion C. Chemical combustion D. Gravitational collapse None 9. Praxis General Science: Earth and Space Science The Ring of Fire is associated with: A. A high number of volcanoes and earthquakes B. The region with the most sunlight on Earth C. A zone of intense solar radiation D. The area with the most frequent tsunamis None 10. Praxis General Science: Earth and Space Science What is the primary driver of the Earth's water cycle? A. Geological activity B. Solar radiation C. Lunar influence D. Tectonic movement None 11. Praxis General Science: Earth and Space Science What causes the phenomenon of the Northern and Southern Lights (Aurora Borealis and Aurora Australis)? A. Lunar reflection B. Earth's magnetic field interacting with solar wind C. Volcanic activity in polar regions D. Reflection of ocean waters None 12. Praxis General Science: Earth and Space Science What is the primary cause of seasonal changes on Earth? A. Earth's distance from the Sun B. The Sun's changing position in the sky C. Earth's axial tilt relative to its orbit around the Sun D. Variations in solar radiation None 13. Praxis General Science: Earth and Space Science Which type of rock is typically formed by the cooling and solidification of magma or lava? A. Sedimentary B. Metamorphic C. Igneous D. Plutonic None 14. Praxis General Science: Earth and Space Science The hypothesis of continental drift was first proposed by: A. Isaac Newton B. Alfred Wegener C. Charles Darwin D. James Hutton None 15. Praxis General Science: Earth and Space Science What is the primary cause of ocean currents? A. Marine wildlife movement B. Underwater earthquakes C. Wind patterns and differences in water density D. Rotational effects of the Earth None 16. Praxis General Science: Earth and Space Science Which gas is most responsible for the greenhouse effect in Earth's atmosphere? A. Oxygen B. Nitrogen C. Carbon Dioxide D. Argon None 17. Praxis General Science: Earth and Space Science What is the term for the point on the Earth's surface directly above the focus of an earthquake? A. Epicenter B. Hypocenter C. Apex D. Zenith None 18. Praxis General Science: Earth and Space Science Which layer of the Earth lies directly below the crust? A. Core B. Mantle C. Asthenosphere D. Lithosphere None 19. Praxis General Science: Earth and Space Science The term "aphelion" refers to: A. The point in the Moon's orbit closest to Earth B. The point in a planet's orbit closest to the Sun C. The point in a planet's orbit farthest from the Sun D. The moment of greatest solar eclipse None 20. Praxis General Science: Earth and Space Science What are the most common elements in the Earth's crust? A. Iron and nickel B. Carbon and nitrogen C. Oxygen and silicon D. Hydrogen and helium None 1 out of 20 Time is Up! Time's up
