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Earth Science & Geology Quiz

Earth Science & Geology · Expert

20 questions · Unlimited attempts · Free online practice

Earth is a planet in constant motion, shaped by powerful natural forces over billions of years. Earth science and geology help us understand everything from towering mountains and...

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All 20 questions in this Earth Science & Geology quiz
  1. The largest mass extinction in Earth's history, which wiped out over 90% of marine species, occurred at the end of which period?

    • A. Cretaceous
    • B. Triassic
    • C. Permian
    • D. Devonian
  2. In which geological process is one tectonic plate forced under another into the mantle, often creating deep ocean trenches and volcanic arcs?

    • A. Rifting
    • B. Subduction
    • C. Folding
    • D. Faulting
  3. What is the term for the study of the depth and topography of the ocean floor?

    • A. Cartography
    • B. Bathymetry
    • C. Geomorphology
    • D. Hydrometry
  4. What are the giant waves caused by undersea earthquakes?

    • A. Tides
    • B. Tsunamis
    • C. Rip curls
    • D. Currents
  5. What is the outer rocky layer of Earth called?

    • A. Biosphere
    • B. Atmosphere
    • C. Lithosphere
    • D. Hydrosphere
  6. Which type of crust is generally thinner, denser, and younger than its counterpart?

    • A. Continental Crust
    • B. Oceanic Crust
    • C. Lithospheric Mantle
    • D. Asthenospheric Crust
  7. What is the name for the region of space surrounding Earth where the planet's magnetic field dominates over the solar wind?

    • A. Ionosphere
    • B. Magnetosphere
    • C. Exosphere
    • D. Stratosphere
  8. What is the ratio of a mineral's weight to the weight of an equal volume of water?

    • A. Density
    • B. Specific Gravity
    • C. Molar Mass
    • D. Hardness
  9. During which period of the Paleozoic Era did the first land plants and insects appear, following a period of massive coral reef development?

    • A. Cambrian
    • B. Silurian
    • C. Carboniferous
    • D. Permian
  10. Which type of rock is formed from the cooling and solidification of magma or lava?

    • A. Sedimentary
    • B. Metamorphic
    • C. Igneous
    • D. Evaporite
  11. Which type of volcano is characterized by broad, gently sloping sides and is built primarily of fluid basaltic lava flows, like those in Hawaii?

    • A. Stratovolcano
    • B. Shield Volcano
    • C. Cinder Cone
    • D. Lava Dome
  12. In seismology, what is the point on the Earth's surface directly above where an earthquake starts?

    • A. Focus
    • B. Hypocenter
    • C. Epicenter
    • D. Nadir
  13. Which sedimentary rock is formed primarily from the accumulation of calcium carbonate from the shells and skeletons of marine organisms?

    • A. Sandstone
    • B. Limestone
    • C. Gypsum
    • D. Basalt
  14. Which specific property of a mineral describes the way light reflects off its surface, often categorized as metallic or non-metallic?

    • A. Streak
    • B. Hardness
    • C. Luster
    • D. Cleavage
  15. Which fundamental law of geology states that in an undisturbed sequence of rocks, the oldest layer is at the bottom?

    • A. Law of Cross-Cutting Relationships
    • B. Law of Original Horizontality
    • C. Law of Superposition
    • D. Law of Faunal Succession
  16. What is the estimated temperature at the Earth's center (the Inner Core)?

    • A. 1,000C
    • B. 2,500C
    • C. 5,200C
    • D. 10,000C
  17. Which landscape feature is characterized by sinkholes, caves, and disappearing streams, formed by the dissolution of soluble bedrock?

    • A. Glacial till
    • B. Karst topography
    • C. Arid desert
    • D. Volcanic plateau
  18. Which is the most common gas in Earth's atmosphere?

    • A. Argon
    • B. Carbon dioxide
    • C. Nitrogen
    • D. Oxygen
  19. What is the term for a continental margin that is not a plate boundary and is characterized by a wide continental shelf, like the U.S. East Coast?

    • A. Active Margin
    • B. Passive Margin
    • C. Transform Margin
    • D. Subduction Margin
  20. What is the term for the long-term cycle in which carbon is exchanged between Earth's rocks, soil, oceans, and atmosphere?

    • A. The Nitrogen Cycle
    • B. The Carbon Cycle
    • C. The Hydrological Cycle
    • D. The Rock Cycle